It seems that Brent and I have something in common, somewhat.
I also own a Cobra replica. Mine is a 1965 427 S/C roaster. It was built from scratch, using 2 by 4 rectangular tubing welded together for a frame. Use a MGB front and a Jag XKE rear suspension because I wanted real Knock-off wire wheels. I installed a BOSS 302 engine with a Gale Banks twin turbocharger system. I didn't do too bad on the ISCA show car circuit since it was completed in 1983.