Here is what I did, I built a table out of 2x4 lumber that was the height of the tail gate. Then I can just slide the hitch on and off the truck bed with little problem. They are heavy to pick up but slide fairly easily. Make sure the table is stout with cross braces to hold the weight
Oh yeah this is best a two person operation, one behind the table to keep it next to the tailgate, the other doing the sliding. Unless you build a massive table, I used some plastic deck grating (I had on hand) as the top but you could use a couple of 2x4 across the top, it does not need to be solid, better not to keep the rain off it.
Arctic Fox 25Y Travel Trailer
2018 RAM 2500 6.7L 4WD shortbed
Straightline dual cam hitch
400W Solar with Victron controller
Superbumper