A C&V platform pedal that I really like is the Ofmega Sintesi from the 80's, as it has a nice aero design, plus they are lighter than most platform pedals. They will also look good on pretty much any 80's vintage bike.
A couple of Euro sellers have been selling them NOS at eBay for pretty cheap last few months (Less than 50 bucks, IIRC) You might still be able to catch a pair from them if they have not sold out. I got a pair from one of them for future projects and except for the box, the pedals are in perfect, NOS condition, complete with the special toeclips that have longitudinal mounts to the pedal body.
If you want to go cheaper, you can also try to find Maillard's basic version of their CXC pedals (not the "700" version), that were basically throw away pedals as the bearings are not servicable. They usually last long enough to make them worth the very cheap prices they go for. I've sometimes seen them go for less than $20, NOS. Only thing with the CXC's a lot of them are sold out there without the special clips that go with them, and they are not easy to find. So if you want cheap and don't need clips, they could be something you might consider.

Chombi