Should I rescue this? '66 Dart 4-door

Most will agree the 2 door car is worth more $ than a 4 door. They will also admit a 70 Challenger is worth more than 70 Duster. The initial cost of one is more than the other. BUT... It costs roughly the same to restore any car, 4 door, 2 door, Duster, Challenger. Initial cost of the project is different.
I like 4 doors and I like being different Same with wagons. Different. 99 of 4 doors have gone the way of the parts car. TOO bad really. It is great for a 4 door to give its life so another car can live on, but there are many solid and cheap 4 doors out there. Some of them deserve a life too!
Looks like a solid car, being in Ks I bet it. Like said, wash the heck out of it, get it running and on the road for cheap and enjoy it!!!! IF you will be happy, if not pass.

It is all about the seller and the buyer. You should buy it as a 4 door and sell it as a 2 door. Would give the best profit. For me, I never buy a car to sell it, or for profit. I buy it to own it and enjoy it. Quite a bit of difference there.