Looking for another XR6 to build into a dualsport to replace my last one that was stolen. Been offered a very good deal on a 1990 in great shape, but if I am not mistaken Honda still ran a rear drum on that model year. Has anyone retrofitted a rear disc setup onto one of these earlier models? Is it even worth doing or should I just hold out for a newer one? My last one was a 94 so I had a rear disc and still have some spare parts lying around.