My demon project . How would you build it ?

I would go with a Gen III motor and run twins and transit with a 4L80E with paddle shifters and a nice 9" Ford with discs all around. Put it in the weeds. run some dirty super 40's with an oval side outlets in front of the rear tires. Don't paint it and clear coat over the rust. This way you can keep the sleeper look and grin every time you smoke an LS car. I love the sound of twins on a V8.