I just quickly read through the posts, so not sure if this was suggested. I think your best bet is to add a front hitch and haul it there. I easily installed one and I haul my son’s bike with it. Plus, I’m pretty sure it’s rated for 500#. Another plus is that it won’t be bouncing around in the back. Some 350# hitched are pretty wimpy. I busted mine just from bicycles bouncing around (it was a bolt together). Before you install one though position your bike in front and make sure you are ok with your field of view from the driver seat.
