To get my glider's fuselage into my "hangar" (AKA garage) for winter work I I have to get it off and out of the trailer generally by myself. I made some ramps to help with this. I thought you might find this useful.
There are two pairs of ramps. One is a pair of rather narrow ramps to get the fuselage dolly up/out of the deep Cobra ramp aluminum channels. The second pair of wider ramps is to get the dolly down to the ground.
Pictures can be found at
http://aviation.derosaweb.net/ASW27/Trailer/Ramps/
Enjoy,
John DeRosa (OHM Ω)