As noted, I've nixed the cheap Hong Kong kit but I am interested in seeing if this can be done. Getting/building a disc compatible rear wheel isn't a big deal, actually some listed on CL relatively cheap. I didn't see anything on the A2Z site that looked like it would work to retrofit an older frame like mine but found some kits online & on ebay (NOT from China) that would mount by the axle & attach to the rear brake mount. Basically I need this or to mount the caliper on my frame, yes?

http://shop.therapycomponents.com/im...185803954.jpeg