The Beast I Drive

I have a 78, brat and was wondering what lift kits you have available for this? also from responses on threads I posted it sounds like I should swap the rear end out to a gen II set up. my plan is to do a motor swap and a hi/low 5 speed. Is there one specific car that I could get as a donor car for all of this? I was thinking about an 83-86 GL model subaru? I would like to do a bigger motor swap but sounds like I have a horrible car for that, but I can get about 110 ponies from a worked EA81?