I've got handfulls of 20's but I have about 100 or so 20inch dodge steel wheels that i wanna run on my max. I figure if I have 100 or so, I can use 4 and not make a dent.
im not 100% sure on a mighty max or d50 but i know on a nissan you just use a toyota hub assembly you dont actually use the whole spindle assembly just the hub and bearings, and i know on nissans you have to shim the brake caliper