I haven't seen the show, but doing a Mustang with bolt on parts is a good idea that doesn't get the students in over their heads. It allows them to see, just like us, that many so called bolt on parts simply don't fit. It also allows the kids without as much experience to get their hands dirty. Granted, there may be some kids that grew up around cars, but they are a small percentage these days. Just for them to get to have a hand in this is too cool.
As far as the car selection, a lot of schools don't have many good cars donated for use like this. Next time you have a parts car you want to get rid of, before cutting it up and scrapping it because no one wants it- stop in and see the local high school auto teacher with some pictures of the car and offer to bring it in. Be honest with them, don't tell them it is a perfect car and expect them to show up on their Saturday and have to haul it out of the back forty only to find it rusted in half :lol: They don't get paid extra for it, and if they are motivated enough to go pick it up, they deserve to get one that doesn't need everything. They may be interested in building a dirt track car, a derby car, or mud bog rig, or tuff truck for the county fairs and such... not only a drag car, depending on where they are, and what is local to them.