Garey, your work is admirable, but you need help with the body. The MPC 1/16 scale 427 Cobra body is just about dead nuts, except for the omission of the body panels wrapped around the front
oil cooler . I don't know how to scale it up to 1/8, however maybe Ozgur can assist you with his computer program. His street Cobra came out pretty nice. The toolmaking dept. at Revell/Monogram Models had a tool to convert scale tool masters. They successfully increased the 1/43 scale '67 Corvette to 1/24 several years ago.