I need help identifying early Darts

Howdy gang, I was fishing in my new honey hole today looking for some Cuda stuff and I came accross a few early Darts. Now, I'm not very versed in the early Darts and I would like to know what I'm looking at here, what years these cars are, and more importantly, what parts I should grab for y'all and what they are worth. The owner of the yard is very old and some of his prices are kinda high, so I need to be armed with some accurate information if I'm going to buy any of this stuff. Heres a few pics of the car I found there, if anybody can help on identifying anything of value i would be much appreciated. Thanks everyone for any information offered, Geof