That is some contraption...can't say how that would work.
Bolt It On, Serious Racks
I use a moveable chock from Harbor Freight:
Motorcycle Stand / Wheel Chock
Stays put where I place it with rubber feet and can be moved outside and into the house. Tie-Downs in the floor (e-track) hold the set-up in-place.
Others here use Condor chocks mounted with blind-nuts (AKA Nut-serts) for easy removal without access to the underside of the floor.
I am sure other Outlaw owners will be right by to add their ideas.