thanks for the responces guys! I dont post a lot on the forum, because I usually can find what I am looking for in the search, and I dont really have much Knowladge to add to most discusions. When ever I do post, everyone is always very helpful. cheers to that.
calj737, didn't mean to offend. I know these breaks were the tits at the time these bikes came out. Just been spoiled by modern brake tech...You are correct about people making adapters etc, what I am interested in is finding what specific rotors will work with our hubs bolt pattern (understanding a spacer will be needed to get the offset correct). Making a spacer and caliper bracket is all doable. I know on the xs650 forums there are lists/spreadsheets/diagrams etc. that outline parts the bolt right onto the bike. Figure someone might have made the same sort of thing for our Honda CBs. maybe not. Those XS guys have too much time on their hands.
bwaller, turbo guzzi always has the coolest tech...still trying to fab up a hydraulic clutch actuator like he has on his CB500f. your brakes look great too. my thought is that there are so many of those Brembo Gold calipers out there for so cheap (ducati has made a lot of monsters), that i would like to go that route with the caliper. they might not look period correct, but they stop on a dime, and it's easy to get parts a rebuild kits for them. Seems like some enterprising young machinist could get quite a bit of interest if they make a nice bolt on spacer kit for the Brembo Golds (pandemonium cycles did this for xs650s, and now you hardly see on without the brake upgrade).
Ill keep updating this page to show what i come up with. might just buy Scott's twin disc setup for the short term, and then try to sort an upgrade during the chilly shed months.