I built my own 2011 for USPSA Limited from an 80% frame, mostly because 2011s are hard to get at any reasonable price here in CA. Been using my custom built pistol for a few months now. It has been my first 1911 pattern gun ever so I have learned just about everything the hard way. I read a ton of books and watched a ton of videos, then took the plunge.
I actually saw the ad for the class on Shooter's Connection today and considered taking the class, it would certainly fill in a lot of gaps in my knowledge.