The Vinyl tops are original. That top new is ~$700 from GMA cover Corp. They sell to civilians too.
M54 5 ton with Winch, Hard Top, 3 Color Camo paint (looks good), 300 hours, drop side, rear Cargo Cover, $10,000 seems good to me. I paid $9,500 for my M813A1 dropside that was without a cover...