Time Capsule as a classroom WAP and file server?

Question

Hello all:
I am teaching a new course, Big History, which has been developed to take advantage of iPad or other tablets in a WiFi classroom setting.
As our school does not have a school-wide WiFi setup (wired LAN only) I am working together with our IT techie to implement a Time Capsule in our classroom only.
Security and limited access is of paramount importance due to regulations here in Spain, i.e., students may only access those sites required by the course and can't use classtime to play around. I won't be buying the gear until I know it will function as needed...
This WiFi setup is a pilot project, and if successful will lead to a school-wide rollout of WiFi and iPad teaching.
The success of this implementation depends on getting it right...then we can join the 21st century...so I could really use some help here. Here's what we know so far.
The school's wired LAN must have the restrictions in place as mentioned above, and it would be impractical to selectively unblock specific laptops in the computer lab during my class teaching hours and only for the students in my class.
Every day's instruction needs different sites unblocked. So you can see this would be cumbersome for the techie...that is, he doesn't want to do it.
All of my students already have their own tablet devices with WiFi, so it's BYOD.
We will connect the TC via its WAN port to the school's wired system. The techie will set us up as a "sub" network, in effect bypassing the schools main LAN, and we will have no restrictions.
The TC will then act as a WAP and basic file server for classroom resources and for students to pass in homework.
We will then set up a user's group for access to not only the Internet, but also files stored on the TC's hard drive.
Kids will be kids. If we don't limit access to the TC's WiFi, I fully expect that my students will give out their logins and passwords, and will tell other students when I am holding the class so they could use the WiFi surreptitiously. Kudos to the kids for being clever, if I were a teenager again I'd do it too...but it ain't gonna happen.
So far we have concluded that to avoid this: I will take the TC with me when class has ended; and each student's device will be registered as a user by it's MAC Nº.
My immediate questions:
Will this work as I have described? Have I missed something?
I have read elsewhere in other Apple support threads that I may be asking something of the TC that Apple has not envisaged...in order to use TC as I want, we need a specific configuration to access the Internet and also to allow guests on the network?
I will be using my MacBook, connected via Minidisplay port -- VGA adapter to the classroom projector and audio.  I will be access the same files on the TC that my students do. How do I protect my files on my MacBook from intrusion? That is, students can only see what's on the TC's drive.
The students can upload their homework to TC and also download files from the TC to their devices for homework, further study, etc. Yes? This will work?
This is enough for one post...any assistance would be greatly appreciated.
Also, if any Apple Education personel and/or gurus are monitoring, please feel free to chime in. If I am successful in this pilot project, it means another school joins the Apple Family (700 iPads!!!! How cool is that?)
Many thanks in advance to all,
Steve Russell
Laude International College

Answer 1

Kinda disappointed that after 80 views no one could offer an opinion or solution. I went out and did my own research.
Here's the deal:
Time Capsule is designed for domestic / professionals who might have a design studio, etc., i.e., for users to have as a wireless backup device for all of their personal stuff (photos, videos, music and suchlike) and to have a permanent resource for every iteration of any work in progress they've ever done.
TC and it's software is not able to easily, or practically, provide a file server type of environment for multiple users, such as in my application for the classroom. It's just to much of a hassle. Moreover, the TC (and the Extreme for that matter) is a "dumb" device...no processor, no RAM. Power supply, WiFi and a drive, basically. It's the wrong tool for my job, as cool as it is for other applications.
Moreover, IMHO, TC is designed primarily for the USA, or any other region where the internet provider usually only supplies a cable/POTS modem. Both the TC and Extreme are best described as Routers in this instance. Here in Europe, at least in Spain, our providers supply a modem-router combination box. In order to use the AC or AE, I'll have to cable in from the modem router WAN to AC/AE WAN port, and then have to go into the M-R and turn off WiFi. Then I have to fiddle around with channels, and perhaps (hopefully not) ask my ISP for a gateway password. My Spanish MAC geek pals tell me that's not necessary. It's a kafuffle for the unitiated, but reasonably easily done.
For true classroom use and all the stuff I want to do, one needs some sort of server environment. For me, it's going to be a MAC Mini + OS X Server cabled to Extreme over LAN. For my use, the 2 or 3 TB drive in the TC is superfluous, more hassle than it's worth and of little use in my specific application. Yeah, I could load OS X Server on my laptop, it's only €19.99, but that ain't gonna happen, not even on a partitioned disk. I'll cable lappy into the Mini as well. WiFi's for my BYOD students.
BTW, I'll be buying the middle range Mini, 4 GB RAM, faster processor, with a Fusion Drive, and 3rd party RAM to 16 GB, and buy OS X Server for €19.99. BUT, I'm going to wait to see if there is a refresh later in the Fall with the launch of Mavericks.
Hope this helps any others thinking about a similar situation.
All the best,
Steve