rear discs on OBS 1500??????????

on my 88 c1500, i am wanting to do a disc brake rear. I know to use impala rotors, but what years and front or back?
 
I have also heard about some s-10 calipers?
 
Has anyone ever made their own brackets, or would I have to buy them from somewhere? We have a laser cnc machine at work, so I could use that if I could get some kind of template

There is a huge write up on Fullsizechevy.com. It has everything you will need to know to get this done.   http://www.fullsizechevy.com/forums/general-discussion/tech-articles2/237683-disc-brake-swap.html   Later, Chad

i just finished installing rear disk on my 88 Toyota,got brand new 79-85 Caddy calipers(loaded) from e-bay,Classic Performance Products,$136.53 shipped.