Red Duck
I dont have a picture, couldn't conjure one up through Google either, but back in "the good old days"...think early Can Am series circa mid to late '60s...I recall watching a few cars being transported in box trucks, Penske/Uhaul types, with hydraulic lift gates. They hooked aluminum ramps on the liftgate, rolled the car onto the ramps with the heavy end over/on the liftgate, and raised/lowered the car. I think the ramps had a hook over the truck side of the liftgate, cantilevered to the rear.
Hey...if it was good enough for the "pros" then, it should work still now. Just need to rent a 5 ton truck with a liftgate, find a pair of 10' aluminum ramps to modify and you're good to go. Only out the price of the ramps and a few weekend rentals when you need the truck.