Like they say, even a blind squirrel finds an acorn now and then, and I guess in my own not knowing where I'm going way, I found the way I am going. I asked a very knowledgeable gear head buddy of mine to swing by the shop. I had four radiators - stock V8 Bronco, stock 170 Bronco, stock 1987 F150 351W and 2003 4.0 Explorer. The F150 would not fit, the Explorer 4.0 would not fit and per my wizard buddy wasn't worth a $h!t even if it would fit.
Sooo,,,,,, easy enough choice - I'm going with the stock V8 radiator from my parts Bronco and modify the 170 core support to accept the V8 mounts. Next, find what shroud and what hoses I'll need, and I will have to add a tranny cooler for the C4, something I had not wanted to do, but at least I found an acorn.
Paul, the picture is the FB Marketplace radiator I bought.