68 Barracuda fastback tube chassis build

I don't see anything "Nuts" about that effort. Had I seen, and it was close enough in proximity? I know I would have been looking for room and an excuse. Lol.

But I also know my brain would be screaming big Gen II Hemi. Yes it's double the cost. But it's also double the "Bling"

Your low deck plan is (I believe.) Best bang for the buck option.