Very cool find, but it sucks the car isn't in better condition. Hopefully you'll be able to get the engine cheap (which I wouldn't see why not), but maybe check to see what they would want for the entire car. While many of the parts may be charred beyond recognition, the remaining salvageable parts may be worth more than what they're asking/offering for the entire car.
It's always good to be able to help out someone else looking for parts to put their car back on the road sooner.