Don't sucker yourself in to buying someone else project

The 72' Dart looks pretty clean and a very good starting point. With the 74' Valiant, you should be able to recoup some of your investment costs by parting the extra parts and trim that you're not going to use (or you could hoard all the extras). Definitely keep us updated on your progress. Many of us enjoy these budget builds because we can steal tips and ideas on how to build a great car that isn't a trailer queen.