I can't speak to Slee's rotors -- I've put OEM on both times I've replaced mine.
I do have Slee's stainless brake lines (both frame to axle and axle to caliper). They're great. Firmer braking, no worries about decade-old rubber, and accommodates larger lift.
There are various writeups on rebuilding the calipers. Check the FAQ and search. When I did mine, I had 3 badly seized pistons on my front passenger caliper. I ended up replacing both front calipers with Toyota reman's from CDan. The reman's were from pre-95 80's, because post-95 Toyota only offers new. The reman's fit and work great for me.