new ride, 68 barracuda formula 1 ? Help Decode !!!

Going to try and bring her back all original 1968 Plymouth Barracuda Formula S / 383 , 4 speed , heater delete, code 5 blue. I have another body that is on a rotisserie. but quarters are really bad. It would need to much $$$ to restore so I am going to use the first car "67" and combine the "68" and make 1 Beautiful ride. Or least I hope too .