Have you considered storing your raft on some type of cart or dolly to make it at the same height as your hitch attachment?
With a roller bar on the hitch, you could wheel the raft to where the front of the raft is sitting on the roller bar. Hop in the bed of the truck and pull it straight off the cart or dolly into the truck with little to no lifting involved.
SF
Yes, this had been talked about also.
One for at home, truck level.
Then a dolly/cart to take with me. So when possible, I can shuttle it to the water easier.
So much to do lol