Build we just did might come close to qualifying (we are 295lbs):
Calfee custom tetra tandem (no lateral), ti couplers, blue prismatic paint
Alpha Q X2 fork
Chris King Ti NoThreadSet
Topolino AX 3.0 tandem wheels
Vittoria OC EVO CX tires, 700x25
Campy Record rear derailleur (med cage)
Campy Comp front derailleur (triple)
Santana carbon cranks, 175/170, 53/39/30
Dura Ace 7703 BBs (118.5x68, they don't make these any more, bit hard to find)
Campy Record ti & steel cassette, 11-25 (10-speed)
Wipperman 10x1 chains
Campy Record Ergo levers
Campy cables and housings
Campy Record front caliper brake
Tektro long-reach rear caliper brake (will replace both brakes with Zero Gravity Negative G this winter)
FSA K Wing barstem (ex Calfee)
ControlTech stoker stem
Profile stoker bar (47cm, will replace this and stoker stem with stoker barstem this winter)
Fizik bar tape
Easton EC90 seatpost (captain)
Fizik Aliante Carbon saddle
Pazzaz seatpost (stoker, carbon, Taiwan brand, USE RX Carbon didn't work out)
Selle Italia Lady Gel Flow saddle (Fizik Vitesse HP didn't work out)
Speedplay Zero stainless pedals (captain)
Speedplay Light Action ti pedals (stoker)
Arundel Dave-O cages
Fizik saddle bags, medium under stoker, small under captain
Garmin 305
S&S travel cases (2x10inch side pull)