I sat mine on a stack of pallets and then using the landing gear I adjusted to the height needed. Than two of us slid it in. Went easy and smooth. I do hope I never have to take it out anytime soon, as that will be worse than putting it in. We used cardboard pieces to protect the compartment door frame.
Before using the pallets I pondered renting a hydraulic lifting table cart.
2017 Eagle 293RKDS, factory ordered, lots of mods and upgrades. More than I can list.
2018 Ram 3500 crew cab long bed SRW diesel 6spd Aisin 4wd Tradesman.
B&W Ram puck 5th wheel
Mopar wheel to wheel steps