Ok, will budget a couple more bucks toward a high quality upper. I figured as much, but didn't even think about the barrel being on their straight. I guess I could always lap it, but still... rather start off with a quality product anyway.
No idea what I'll do for a bolt carrier, I'll figure that out as time comes, but Young Manufacturing does look like they put out a nice part. If they're good enough for LBC, they're good enough for me.
I've shot and qual'd with non-free float handguards while I was in the military I agree with you on that one too. While you can shoot perfectly fine without freefloats, you have to put the same tension in the sling to exert the same forces... everytime. No thanks, free float for me. Since I don't need all sorts of junk hanging off a rail system, my deciding factor will be how light the handguards are.