Newb here.

First welcome to FABO. Your going to find answers to your questions here. Some good and some bad! lol.
As for the car its getting harder and harder to find these cars in any kind of decent shape. The title, keep in mind that no one knows its a reconstructed unless you tell them. If you plan on keeping the car forever it really doesnt effect it. As for parts to repair and rebuild I dont know about the Barracuda's but I have been playing with a 66 Dart and there are plenty of parts that surface here on this forum and I see more cuda stuff then Dart. As for money and going in over your head, Yes its going to happen if you decide to restore it. But as stated in an earlier post, its a hobby so spend as you please and dont look at it as an investment. Enjoy the time you spend with it.
Best of luck.
Rod