Adoberetreat interesting idea. I am in a similar scenario where I want to start htting the track as well. My approach is somewhat different than yours tho. My plan is to get an inexpensive car to begin with in the event that something goes terribly wrong I can easily replace the car and not worry too much about it. I know you didnt ask for my opinion but since we are on the internet and all this info is out there 😂😂........why not get an older 911 and set it up as a track car. I bet u could do that for $30k (https://bringatrailer.com/list...porsche-911-turbo-34) and keep that masterpiece of a GT5s and have the best if both worlds. From my limited time on a track I think you will have just as much fun if not more with the less expensive car and have the piece of mind that u may not wreck a 200k car.
With all that being said, I wish i had the money to buy your Pantera. Lol