Steve, if you're a stickler for 'stock', there are two (maybe 3) versions of 10"x15" Pantera Campagnolos. They were first optionally available in Europe on the Gr-3 cars. Later, Gary Hall had a bunch (unknown number) done in Italy for sale in CA, and the rim-side-braces on the faces are slightly longer on these later examples.
Somewhere I have a photo of a possible prototype 10" x 15" Campy with NO side-braces. There are minor differences in early & late 7" and 8" Campys, too. So finding a pair of 10s is hard & pricey, and matching them to a pair of fronts is even more difficult. Good luck-