Gumpit has his own trailer, you could rent one
What I would do, is get a ''mobility'' scooter carrier,, & hook it on to your hitch,, & is cheaper ''in the long run'',, plus you own it.
You can put 2 Mini's on those.
Harbor Freight has, or had,, a ''really nice'' Alum. offering,, with a ramp,, & are awesome,, & i think only around a couple hundred bucks.
We plan on getting one to hook on the back of our future 5th wheel,, to haul our 2 Mini's..
Thing you want to do also is,,
Use a couple of tie down ratchet straps ,, & attach those to ea. end of the hauler,, & then attach the other ends to the frame ''or hard points'' of your vehicle.
That will keep the hauler ''pinned'' from moving from ''side to side'' ect,,,, & help keep the Mini's ''a lot'' more secured.
I