63 Dart 4 door conversion to Pickup..

First thing I would do is get some homemade frame connectors on there with some 2 buy 3 steel sections that are 4 feet long. Then get some steel for some cross bracing on the inside of the cabin in places where you aren't going to cut. I like the idea of your project and I agree it's a good car to do it on as it's not worth a whole lot but it's your car you can do whatever you want with it. There's still loads of Ford or Dodge Darts out there so have at it. I mean hack at it. :-)