White Oak Precision... for the upper... you will come in with a tack driver for way under 3500... thats a ridiculous, to me, price.
Upper being 100 buck range, float tube 200 buck range somewhat. Add a few misc parts for 200, top line barrel is 300-400 max, and maybe 250 to put the barrel together, and then assemble upper a bit more...
All you do is come up with lower... with whatever stuff you need on it.
Fact based that we did a lot of competition shooting to 1000 yards with irons with Johns work and John is a top line shooter and national civilian champion with the AR....