Sub 7 is easy .. Looking at AMAC sale ad that looks like the CAAD6 I built and sold to fizzybubbelech which was under 7 with a set of Reynolds Attacks installed ..
Main parts spec in my build ..
New Sram Red Compact BB30 cranks with Bearings
Rival Mechs and Shifters with iLinks cables
New KMC Chain
Low mileage 7800 Dura Ace cassette
Deda Zero 100 Bars and Stem
Sella Italia Filte TT saddle
Selcof Seatpost NOS
New Kore Gradient Brakes with SwissStop Black Pads
With the exception of the iLinks, no real weight weenie parts used