The Thunderbird wiring harness is different from the Foxbody, and it's not as easy to convert in to a stand-alone harness. I had one and tried it. Depending on year of course... Wiring isn't my strongest point, and I'm not saying it can't be done, but even with the Thunderbird wiring diagram it was far too daunting for me. Plus it was a 92 model which is old enough to have overheated near some of the connectors, etc.. Coil connector, A/C relay connector, etc.. Making a new Ron Francis harness sound even better..
The Thunderbird front accessory drive stuff is low profile as well. Maybe not quite as short as the Exploder stuff, but it still allowed me to fit the Thunderbird factory mechanical fan in my 87 Ranger, but I used an Ebay V8 swap radiator made by Superior (one with the 90 degree filler neck) that tucks up inside the core support. I recently added A/C to the truck so the condenser took up even more room and pushed the radiator back a few inches, and I still had room for the mechanical fan.