I'm not sure if you could do this with the cab you have, but I helped a buddy convert a cab and one of the things we did was to replace the brackets holding the sides to the front, back, top, bottom and inside panels with 2x2's. what we did was use "gorrila glue" and screws (through the 2x2's from the inside) on the side panels, then attach the panels to the 2x2's with just the screws (no Glue). this made it really easy to move it up two flights of stairs. ourgrace