When empty it is moveable..... kind of. I have no intention of leaving it behind should I move, unless I use it to negotiate a sale. Your objective is quite achievable with a little ingenuity. You could frame in steel studs, angle iron. Have a welder frame out the bones of your work station, and you finish in lighter materials, including casters. There are a lot of options.
Q'n, Golf'n & Grill'n.... too many choices!
Gary