There shouldn't be any belly covering in the garage area for one, I haul an Ultra and a Heritage in mine and I put the ultra on the opposite side of my main slide. If you have 2 main slides...one on each side I would put Harley close to center and put scooter on side with smallest slide. I use 2 condor mounts in mine, loosen 2 wing nuts and they slide off and I only have a small pc still bolted to floor. Just my opinion but I wouldn't haul a street bike in a toy hauler without using a wheel chock of some kind. Too much can happen on the road and I want my bikes to NOT move!