I'm sure this is going to disappoint a few people, but the components I'm going to use are almost as new as the paint.

NOS Campagnolo Comp Triple Drivetrain (c. 2010)





That will be paired with Potenza brakes (2018, but retro-fitted with longer bolts for nutted attachment).



10-speed Centaur shifters will round out the mix.



The wheels are H Plus Son TB14 rims laced to Campy hubs (Victory front, Veloce rear). Sorry, no pictures of those.

I intentionally avoided modern braze-ons (apart from the bottle bosses) to keep a bit of the vintage flavor in the build. I have a set of Huret clamp-on pieces -- including my personal favorite vintage accessory, a Huret Jubilee bottom bracket cable guide -- for a tip of the cap to the bike's French heritage. I think it will end up looking pretty classy, while also being configured the way I like for riding.