Here's a 600# option...just found with Google, I know nothing about it....
or for really heavy options, you have things like these
Motorcycle Carrier | Motorcycle Lift | Motorcycle Trailer | RV | Pickup Truck
and
https://torkliftcentral.com/rving-an...cycle-carriers
I've even seen some that have small tires, basically casters to hold weight, not like a trailer
Problem with trailers is that there are so many CG's where you can't store it in your site....so there's the hassle of dropping it at storage someplace after unloading the stuff at the site.....