the problem i saw with most other streetbike calipers, besides the certain years gsxr's i use, is they use the stock bracket as a slide on one end of the pads, and others the slide pins screw into the stock, thick, aluminum bracket, and i saw no way to incorporate it.
tuned in to see what you come up with.
edit:
yep, it appears the cbr brake pads do indeed use the stock bracket as a slide for one end of the brake pads, and a slide pin for the other...........
wish you'd have started this thread before you jumped into the fire, i coulda suggested calipers, or even sent you the 2 or 3 like that you ordered for free to experiment with.
i bought them cheap as a complete set, just for the master cylinder, the calipers are laying here and about ready to go for scrap aluminum
Just got a caliper from my buddy. Not sure if it works but a rebuild kit is cheap. Now just to play the waiting game on the rest. I won't have more than $50 in the whole thing