Got a little more work done.
I used Tinkercad to design a tank to fit in the limited space trunk. It almost fits perfectly but sits a little high, so to the grinder it goes for a bit of trimming to the bottom.
I decided to modify the Corvette dash to give it a couple of touchscreens. The one in front of the passenger will tie to a night vision camera in the grille (yes, they do exist), and the center screen will be multifunction.
The seats are low back units I bought the files for and printed.
I'm considering a console but that's still in the air.
I'm working on fitting the taillights now. I cut some from a C7 Corvette to remove the turn signals so they fit, but botched cutting one hole already, but its salvageable with some work.