A Warrior rear hydro setup could be had cheàp on eBay or CL. Don't need different disc. Doesn't matter if both disc and caliper are floating.. Have to make caliper bracket. 1/4 thick. If you get dimensions little off, that's where the floating disc helps. Look at pics of 03+ master cylinder mount and copy. Same with pedal. Long hose on Warrior resi will allow you to mount resi up under seat to right of top shock mount, there's even a tab right there for mounting. FTW !!