Thanks for the discussion everyone. I agree that's a great link to follow.
I'm pretty sure the refrigerant I added after the swap leaked out. It was dyed and I actually haven't found the source in the visible field. I think that may lead me to the rear system which is behind a lot of interior trim. I've got to remove it all and look back there. Right after the swap I had installed a sanden compressor, and it smoked almost right after installation. I put the original delco back on and it worked, but is the sanden type actually better? I'll replace the existing one in this process probably just to know that it's working. Low side pressure was always too high if I remember right.
All the electrical is working, but not standard due to the swap. It's essentially turned on by relay activated from the dash button. Clutch is wired in series with the low and high limit switches. That was verified to work as expected. There is a ecu enable in the stock system and the ECU has been pulled for Cummins 12v goodness.