Loading dock

Since I sold my box truck (..sigh) I am using my E150 Ford Van to pick up eWaste. Does anyone have any good ideas for safely loading a Gaylord box on a pallet, (using a pallet jack ) from a 48" high loading dock to the rear doors of a 28" high van? The goal is to safely and efficiently transfer the Gaylord/pallet while not coming across as Laurel & Hardy or the Keystone cops while the client looks on: Not winding up scattered across the parking lot is always a plus. So far I have been manually transferring the load from the dock to a box in the van. Harbor Freight ramps have been ruled out. Thanks, SMF members!