Hmmmm,
I spent way too much on my twenty!! And there's still more to come!!
I settled for the original BB for now with new bearings, (Harris cyclery), powdercoated the original 46t crank set, coming will be a Shimano UN72 BB with Phil Wood 26TPI cups so I can fit a set of Redline cotterless cranks and a 48t ring to give my S/A xrf8 - 8 speed hub, (Harris cyclery,again), some more top end speed. New 451 Aero rims with Schwalbe Stevlios make it a lot quicker and a yellow Selle Italia gel saddle matches the black/yellow bar tape on the drop bars.
For brakes I'm using BMX style, but I'm considering Sheldon's idea of drop bolts for modern road calipers as I'm not using fenders, all in all it is heavier than my other roadies, even with a fair deal of light mods, but what a BLAST to ride and the looks you get........ it may be well worth it.