Trucks in this scale are rare, ww2 stuff is available but you want something current. 3D printing would be an option if you can find someone to do it. It likely wouldn't cost to much because of how small the truck/trailer would be. I also want to make something like this but don't want it all in 1/24 because of length. Say a B-29 fuselage on a trailer for example, gets big fast. Older rigs are boxy and could be scratchbuilt, but finding nice wheels isn't easy. Hope you figure this out, I'd like to see this F-4 combo made. I just make 1/24/25 trucks but have mostly 1/72 and 144 planes.