My old roommate went thru the same thing with his city's council in Wisconsin. He had to design an inset of 2 feet for the last 12 feet of his garage because the city council voted 3-2 to not let him have the extra 24 square feet to make his garage square and enable him to park both daily...
Maybe get 4 caster wheels from NorthernTool and buy some 2x2 tube steel and weld up your own cart for the body. It cant be that heavy and then you can roll it around.
btw: what is a motorpool?