How far gone is too far gone?

Hi guys,

So I bought a 1970 dart as a donor car because it has a 4 speed and a 340 in it.
The car ends up being an H code car, but I haven’t had a chance to check the numbers.

The car is rusty as heck, every panel that I can see has big rusty holes, the fuel tank dropped out of it at some point and it’s running and driving off of an outboard tank strapped to the trunk floor. Of course the floor pans are rotted as well. The car absolutely rips by the way…..

I’m really questioning my decision to scrap this car and I’m wondering what would need to be wrong with this car for a guy to legitimately cut up this car without losing sleep! It’s pretty subjective but I thought I would pose the question.