The last bike I built up was just under $900, and it was pretty basic.
But, it was definitely worth it. And it was totally abused with no remorse.

2nd hand track frame with Tange-sakai headset, Campy Xenon cranks, Campy Chorus BB, Systems EX hubs, Mavic OP's, DT spokes, Ritchy seatpost, Fizik saddle, 3TTT stem, Profile airwing bars, Cinelli bartape, Conti tires, Specialized tubes, Miche chain (not so great) , Tranzmissions cog, Dura ace lockring, TA chainring, singlestack chainring bolts, WPD pedals, the brake I already had.



Dunno if that helps, just felt like posting