I just came from thier website "sanden.com/company/index" and they had all sorts of compressors. They had five and seven piston ones. The seven piston model looked like it had really big pulley on it. Most of them had the four mounting tabs on the bottom just like my RC ('87 31

but had the o-ring normal (the type that screw on to threads). So if you can find out the distance between the mounting tabs (front to rear and side to side) and match that to your stock compressor all you would have to do is modify the ends of your low suction line and high discharge line.
I just re-did my whole system and as far as I could find (here in Del Rio with only two stores who do custom a/c line work) no one sells just the mounting ends for MOPARs, like the one that goes into my "h" valve. I had to buy whole new stock replacement lines and work from there. Didn't even think of trying a Sanden compressor....DOH!
Cheers
Chris