I've never built one from scratch but I stripped mine down to a barreled reciever and lots of ziplock baggies of parts when I painted it.

Everything went back together, no missing pieces, no extra (and it still shoots just fine, it was even dead on sights-wize without any ajustment but that was just luck).

I'm in Aurora (which isn't VERY northern, but it ain't the springs) but I work nights so scheduling may be an issue.

What questions do you have as of right now?