I have a chance to buy a 2005 RMK with no motor. Guy blew a piston, scored the cylinder and a slight scrtach on the crank. Looks like it would need a major rebuild or new motor. Pretty much stock, no upgrade can, pipe, shocks, etc. It had 1600 miles when it blew. The rest looks in mint condition. No rips on the seat, no cracks on the plastic, tunnel is straight. He wants $1400. Should I go for it?