Building one is harder than you think if it's your first build.... but you learn so much... it's facinating... i know how my ak actually works and everything that makes it tick.... it's possibly the simplest gun yet i never knew how complicated it really was till i built one.... I think it's turned out to be a success but i gotta give it a final test fire at the range to be sure....
Willyswagon hosted a AK build party, he might be able to help you guys out

he knows lots of people, and he knows lots on the ak build himself...
I personally ran into lots of problems when building my ak... probobly all the probs you could ever run into LOL... if you have any questions feel free to ask me, i'll let you know what i can... cause i surley learned allot. Also a tip, dont worry to be forcefull at times... somtimes its the only way especially when making the barrel fit to your trunion... hehe