I'm prepaing for the collection of the 2002 420GT next month and it would be useful to know the height of floor pan above ground and the forward projection of the tow hitch from the jockey wheel. To explain, I'm hoping to keep some racking on the rear wall yet get as much clearance between the rear of the van and double doors. So I'm hoping the tow hitch will slip between the bottom and the next shelf up. If not, I have more work to do. Shelves at fitted at fixed heights. I would be grateful if someone could help.