I’m pretty sure you are not supposed to transport on the lift. I transported on mine for a few years somewhat out of necessity and it does put undue wear and tear on the stand. It bent the rear axle on the stand. Also if your rear bumper is a CIK type with the CIK brackets and bumper bolts IMHO you are just asking for an early failure there transporting on the stand.
I have 3 of the Kartlift pro, including one of the vintage chrome ones. They hold up great and I’d have a hard time settling for a regular “trolly” type stand.