LOL! If you want to go down the wasteland/postapocalyptic vehicles rabbit hole, there are a few Facebook groups. Mine is quite mild compared to some of them.
Post Apocalyptic Cars
Wasteland Your Car!
Torinoceptors
This is a friend's car that I helped on and did the weapons for and was my...
Whatever you do, don't buy a heater core from Summit. Zero quality control on those regarding fit. Have bought two of them and neither would fit into the heater box, even with mods. One was badly out of square and the other was 1/8" too big to fit. Still looking for a quality piece.
So he extended the wheelbase two inches and rounded the C pillar corner. If he had started with a Challenger, those two things would have already been done...
"Extreme" front overhang? Um, no.
Have taken out the dash pad by itself. As others have said, a bunch of nuts that are not always easy to get to, but it is doable.
How are you going to do the AC? Looking at putting AC back in my AC car, but don't have all of the original hardware.