I would give it a few days to consider the angles. Really wouldn't worry too much about the doors, they are always hanging on older models. You can bodge them for years with steel rods an filler inside the frames if you don't want to spend the money.
At least the parts are fairly reasonably priced compared to some of the alternatives.
I would check the old chassis carefully, maybe a new front leg would deal, and that would be a fraction the cost of a re-chassis, and only take a few days.
I'll go check it over in a couple of days, trouble is theres a crease in the chassis a inch or two forward of the suspension, which worries me.