Or, why not just make them yourself at school? You have access to the machines, and need to learn how to use them for your class, so this would be another learning experience.
The tough thing with beadlocks with that many screws is when you have to change out tires or foams or whatever.
It's probably easiest to get a nice wheel that uses only 6 screws, and get rock rings like these:
So, if you ever have to take the tires off, it's only the same 6 screws that you would normally have to do.
MTHead can do 2.2's, or any custom work, check out the vendor thread here:
http://www.rccrawler.com/forum/showthread.php?t=272021
Here's the custom 2.2 I designed that inspired the 1.9's to have multi-screws.
So, either make them yourself, or get some inexpensive rings from Fubar.