IPad use for both work and personal by leveraging multiple iCloud backups

Question

I have an original iPad 1 that's my personal iPad.  Since I got an iPhone 5S over a year ago, I almost never use the iPad as it's so frustratingly slow compared to the 5S, and most of the most recent apps don't work on iOS 5.1.1.
I work for a small consulting firm where a large part of my responsibilities is business development.  2-2.5 years ago, I started occasionally needing an iPad for doing sales presentations of enterprise software.  So, I purchased and expensed a then cutting edge 4th Gen iPad.  For work purposes, I've always kept this iPad nearly completely empty except for essential software. In the past 6 months, I've needed this iPad less and less for said presentations.  I'm down to not even turning it on once a month, and have gone 3 months at a time without touching it.  That said, there's always a chance I'll find out that a week from now I'll need to fly somewhere and do a demo using it.
I was really hoping iOS 8 was going to enable multi-user support, but obviously it did not.  I'm now pondering the use of iCloud backups as an effective means of multiple user functionality when you don't have to switch user accounts very often.
My thinking is that I can make sure my personal iPad 1 is fully backed up to my personal 20GB iCloud account, and that the work iPad is fully backed up to the work iCloud account.  I'd then wipe the work iPad, log in to it using my personal iCloud account and let it restore from there.  At that point I'd be using the work iPad for personal use and would completely stop using the iPad 1.
If I found out I needed to demo using the iPad a week later, I would wipe the iPad 4 clean again, after which I'd log in to the work iCloud account, let it restore, and be good to go.  Once done the presentation, I could then wipe it, log back in to my personal iCloud and let it restore.
Every time I found myself needing to use the iPad for work purposes I would simply go through the above process.
My questions are:
Are there are any holes in my logic? 
Am I risking data loss on either the work or personal account? 
I assume iCloud accounts can exist with backups intact even if no device is currently utilizing them?Is there any time limit to this?
Besides the time it takes to wipe and restore the iPad, are there any downsides to the above process?
Is there any reason I cannot wipe my iPad 1 and sell it/donate it? 
Thank you in advance.

Answer 1

Ah, MBA makes more sense.  Unfortunately, the point of demoing on the iPad is to explicitly show that the enterprise software is iPad compatible and what it looks like on it.  Everyone's a skeptic, so I definitely have to use the actual iPad and not emulation software.
As far as overwriting a backup, I would think that the only backups ever visible would be those for the account i'm currently logged in as.  I don't see how it's plausible then to overwrite any in the wrong account.  Again, these are 100% separate accounts that have nothing at all connecting them.  If it were possible, wouldn't the people who sell their iDevices on ebay be complaining about how the recipients deleted their iCloud backups.  I'm effectively transferring the device in the same way...just between by own 2 disconnected accounts instead of 2 humans with 2 disconnected accounts.
I don't really view it as a time drain, as when switching accounts I'd just "Reset all settings," and walk away.  I'd later log in as the other user, and would walk away again while the iPad just automatically starts loading everything up.  I'm not sitting there waiting for it, as this is merely a luxury device that I've never once had an immediate need for.  It's just a "nice to have."
Again, this transfer would likely only be happening once every 6 weeks anyway.  The majority of the time it would be set up on my personal account.
WiFi is no issue, as I'd only do this while at home on my 50/50 FiOS.  Again, I never "need" the iPad on my personal account such that waiting until I return home from a trip would be an issue.