Yeah the one on the cover, oz superleggas I believe? They don't look too out of place IMO, and yours doesn't look silly frsjon, better than I thought 17's would look anyway,
Here's the brakes

And the comps


I sort of test fitted them and there was one bit of the caliper that was catching, so I've ordered a set of brackets to fit them properly and see what the score is, maybe a bit of caliper filing on the notch at the top might sort it