I made a body cart a few years ago to support a '60s full-size Ford body. The project body and chassis have been reunited and I no longer have a need for the cart. I basically copied Eastwood's design without the locking bolts. 1.5" square tube construction, adjustable width and length, 5" swivel casters w/ poly on steel wheels and locking brakes, unpainted, gusseted at all joints.
$200, located in Carleton, MI 48117. 3 miles west of I275 between 275/I94 and 275/Telegraph interchanges. Will post pics when available. PM for contact info.
Photos of the cart knocked down. The 1.25" tube slips inside the 1.5" for width and length adjustments.