12a Engine Swap

I was cruising around the junk yard today and stumbled across an rx7 w/ a 12a rotary engine w/ stick shift. The guy only wants $500 w/ tranny, wiring harness and radiators, and ignition. Im probably going to pick it up tomorrow. I have a 87 b2000 I just wanted to know if anyone has done the sawp or how hard its gonna be or what I need to fabricate. thanks

Log onto Mazdatruckin'.com and look up Dan Atkins on that site.He has a rotary powered 2000 or 2200 and he should be able to help u out a bunch.BJ