You would need to get a Go kart rear axle, www.gokartsupply.com sh, mould hould have one, you just bolt the axle to the frame, the sprocket on the axle should be set up to use #420 roller chain, so just mount the engine in line with the sprocket, put a centrifugal clutch on the motor and, bolt it up. Bodies can be made out of anything, even louan plywood would work good but, it would be angular and not smooth, doing your own fiberglass would be very time consuming and hard. www.americanstreetrod.com has the same '34 Ford for $295 but that's still kinda expenasive.