The hose fitment problems I had with my KKS radiator were with the hoses fitting on the engine side....those fit the radiator fine.
I call it the Trump Effect.....even before the election I spoke with my old welding teacher and he said "we needed a new band saw at the college and because of Trump I want to only buy USA made from now on." That motivated me to once I get the truck running to either recore the original radiator or have a custom unit built stateside.
Ccas, I might give you a call. My truck is a 250 six cylinder, dad knocked a hole in the original radiator decades ago and no idea where that is. It had a small radiator in it from a junkyard that worked great but had several leaks sealed up my coolant impurities. I'll try and drop you a line. Mostly I want something to fit the brackets with new rubber (my lower brackets I bolted in so those can be moved and exchanged for 3 row), fit the engine outlets, and with a horizontal cap....I'd also like an overflow outset set to a direction of my choosing. Can you do that?