Correct. It can be easily set up to stand alone, however you will have to have a relay box. I use this on most of my stand alone harness conversions:
http://www.currentperformance.com/shop/sa-1500-stand-alone-fuserelay-module/
As far as the OBD II port, easy to add in. You have to run two wires from the Coyote computer (CAN + and CAN -), and provide a power and ground to the DLC plug. That's it.
All of the circuits in question are located on the "Body" plug of the Coyote computer. This is the plug that goes to the PDB on the control pack.
Excellent!
Wish I'd had that fuse/relay module way back when I did my last swap like this, I ended up with a gang of relays on the fenderwell.
Touched base with Eric Brooks on the epats removal, thanks for the referral.
So, it looks like the major roadblocks have been dealt with!