I'm trying to build a device to handle large objects trailer style that will get moved via forklift. Will need to be capable of getting pulled through gravel yard and in and out of paint room. Currently have some trailers using standard 16" 8 bolt trailer tires(i think they are rated at 3500lb each). I'd really like smaller tires, preferrably 23" or less but still have enough capacity to handle at least as much weight as the 16". Having a hard time finding a source for something like that. Any ideas?