Critique my parts list!

[cory]

Looking for any suggestions. In particular the build is a little more expensive than I originally wanted. Also if possible I would like to find a good fit billet lower + milspec forged upper with no forward assist. Mega arms makes one except it's got forward assist. I'll keep looking. Also that adjustable gas block is super expensive! If there's a cheaper clamp style (I don't want the screw style as I read it not a good idea for accuracy) made of steel I'm all ears. Also if anyone knows a replacement trigger that's a decent price I'd be open to that. Under $150 for sure if it's possible.

Barrel: Liberty stainless 18" (includes bolt)
Bolt carrier: Rubber city low mass
Stock: ACE ultralight or similar (with self made cheek rest)
Lower: Ranier Arms forged lower
Upper: Ranier Arms forged upper no FA
Handguard: AP Custom 9" carbon fiber
Grip: Magpul K Grip
Lower parts kit: DPMS lower parts kit (will probably swap out the trigger eventually. See grip above)
Charging handle: DPMS
Gas tube: Del-Ton mid length
Gas block: Syrac Ordinance adjustable $$$
Buffer tube: AR Stoner
Muzzle brake: JP Enterprises
Magazine: E Lander 10 round

First I'd advice going billet upper + forged lower, as I think that's probably what you meant.

2nd spend your money on the barrel and trigger, everything else is comparatively arbitrary. I'd be sure to go with a SAAMI spec barrel. However, if you only intend to shoot factory ammo, then BHW is a great option. I'd spend a little more money on a Geissele Tricon or SSA.

BCG: for the price you can't beat the Precision Firearms Grendel BCG. It's as high quality as you'll get.
Stock: purely personal preference
Lower/Upper: I suspect that Rainier Arms set would serve you well. However, Precision Firearms sells high quality forged sets at a great price. I actually just ordered an upper receiver for another 5.56 build.
Handguard: Purely personal choice. I have completely fallen in love with the Spike's SAR3.
LPK: Go with a kit that has all stainless steel springs. I believe PF has switch to stainless steel springs. I know the WOA kit does.
CH: You can save some money here and go just milspec.
Gas Block/Tube: Depending on your barrel you can save some money here too, with standard parts. I've moved to clamp on; however, you'll be fine with a set screw if you don't over torque. You'd have to use a PENCIL thin barrel before that was a potential problem.

I would suggest a heavy buffer, if using a carbine.