I want to sell my MacBook Pro-How do I find the exact model number?

Question

It's late 2011 i7 15 inch and the specs I pull up show 2.4GHz MacBook Pro (MD322LL/A)
Except that i'ts when I click About this Mac it shows:
Processor  2.5 GHz Intel Core i7
Memory  4 GB 1333 MHz DDR3
Graphics  Intel HD Graphics 3000 384 MB
Serial Number  C0**********W47
Software  OS X 10.9.1 (13B42)
It also gives this info:
Processor and memory
2.2GHz or 2.4GHz quad-core Intel Core i7 processor with 6MB shared L3 cache; or optional 2.5GHz quad-core Intel Core i7 processor with 8MB shared L3 cache and I know it's this and 750 GB SATA Disk
4GB (two 2GB SO-DIMMs) of 1333MHz DDR3 memory; two SO-DIMM slots support up to 8GB
Basically, I'm wanting to sell it because I just don't need such an expensive Mac and I hardly ever use it. I bought it new in September 2012 and it's in mint condition. Since it was a model year behind, I only paid $1899.
I have the box but I'm out of town so I was just hoping to figure out what I want to do. I still have the original receipt, it has Office University (or whatever it's called) and a Magic Mouse.
Any ideas of where/how I should sell it? I usually use Craig's list but I don't think that's a great idea for this item. Also, how much do you Apple experts think I should ask? I'm addicted to my iPad 2 but it's on iOS 5 still because it's, well, you know...I like to configure my displays and icons and be able to free memory,etc. so I mainly use it. Thanks for any help! Much appreciated!
Carrie
<Personal Information Edited by Host>

Answer 1

Carrie,
the information that is provided by About This Mac is accurate. What you have is a CTO (“Configure To Order”) variant of the MD322LL/A; thus, referring to it simply as a “MD322LL/A” does not uniquely identify it. I would recommend describing it as a “2.5 GHz 15-inch Late 2011 MacBook Pro with 4 GB of RAM and 750 GB HDD”, so that the buyer knows exactly what you’re offering. Make sure that the box, the other original accessories that came in the box, and the original receipt are included with the MacBook Pro; picky buyers (like me ) appreciate receiving all of those constituent components.
Note, however, that according to the Mavericks software license agreement, that because its installed version of Mavericks was originally downloaded from the Mac App Store, its copy of Mavericks is non-transferable; you will need to erase Mavericks and its recovery partition from the MacBook Pro’s internal disk before selling it. It would save the buyer some time if you would also perform an OS X Internet Recovery to restore its original Lion onto its internal disk before the sale.
To get an idea of what you should ask for it, take a look at online auction sites to see what other 15-inch Late 2011 MacBook Pros are selling for. You are likely to find more 2.2 GHz and 2.4 GHz models than 2.5 GHz models like yours, so you could add a premium of some amount to whatever the more common models are going for. If you live in an urban area, Craigslist could be used to sell it, as long as you and the buyer can agree on acceptable payment terms; finding a willing buyer might be more difficult if you live in a rural area.