Trying to finally get my first Muscle Car - I’m nervous

I’ll make a suggestion, why not dip your toes in the pool instead of jumping in? Maybe look for a nice driver quality car of lesser value, /6 duster, 318 dart sport etc, as a first old car and learn some of the valuable techniques it takes to keep one on the road. For a few thousand you could probably have a very nice A body that isn’t extremely sought after but will be your “classroom” for the time being. You’ll still have a classic, fun car, and the experience you get will go a long way toward maintaining (or building) a much nicer car in the future. And when the time comes to sell it for your demon, you could probably recoup most of the investment if you just maintain it.