I have a 12' stake bed and need a cheap temporary way to load a couple WB's, generators, etc. in it in a pinch, without a trailer. Ramps would need to be at least 12' long for a reasonable angle up. Don't want to spend more than a couple hundred bucks. Don't want to slip and break my legs or equipment. Would like to maneuver ramp(s) around alone without breaking my back. Any ideas? All my ideas suck.