I did this exact thing and it was fantastic. I was able to move out of state totally solo. Here’s how it went down. I used uhaul’s movinghelp to hire 2 movers at each end of the trip.

• night before: picked up truck at uhaul and left my car there
• 7:30 a.m. 2 movers showed up at my old house, loaded the truck, took one hour (I had moved everything to the first floor during the week before the move).
• 9 a.m. back to Uhaul, they attached trailer to truck and guided me while I drove my car on it
• 9:30 - 4:00 drove 6.5 hours to my new place
• 4:00 - drove my car off the trailer and disconnected it at uhaul in new city
• 4:45 - 2 different movers unloaded truck into new place took 1 hour.
• 6:00 - dropped off truck at uhaul drove my car to new home. Had a beer.