Thanks for the replies! I got the plasti dip from
https://www.dipyourcar.com/. They sell it in ready to spray form where it is already pre thinned. I used the ready to spray black which they sell in gallons. I could have done the car with a little over a gallon, but I ended up using aboug 1.5 gallons because I resprayed 2 panels. It cost $52 a gallon when you buy two or more gallons.
It sprayed really well, I just used our average air compressor at home, I did have to always stop to let the pressure build back up again though. I really should have used a moisture separator for spraying as I did get some moisture coming through the gun. I ended up doing 6 very light coats to get the full coverage.
To peel it off, as long as you have at least 3 coats on it, it will peel very easily. With fewer than 3 coats, it isn't very strong and peels off in small pieces, so extra coats are good for more than just coverage. It peeled off very easily, so that's why I didn't mask the headlights (or tail lights) and then I just peeled up a corner, and from there they came off in one piece! Added bonus,it kind of has the race car look while it still had no headlights! Haha.