The tractor from the front of the FEL to the back of the rear tires is 11 feet. The mini is 6 feet from the pusher blade to the back of the tracks I guess that means at least 17 feet is required but then there is the boom dipper and bucket on the mini that needs to be tucked in somewhere. The tractor is 50 inches wide. Perhaps the mini bucket can ride beside the tractor if the trailer bed is wide enough??? Or the FEL can hang out the back and the mini bucket can ride on the trailer tongue???