This the original Pivo stem that mine came with. It's different!
The original brakes are Competitions, not Racers.
The original crank is a stronglight 93.
The headset was a Stronglight P-3, but I replaced it with an A-9. The P-3 is on my beater Jeunet now.
Mine came with Simplex Prestige derailers, but they probably weren't original. Unless you have one of the rare TdF's that uses a claw, you're pretty much stuck with Simplex derailers. I'm using a Super LJ 6000 rear and SJA 102 front.
I didn't get the original wheels with mine. I'm using later Mavic 501 hubs.