Hi Jeremy,
Congrats on your "new" Pantera! And welcome to the family!
Attached is a list of the "Best Fixes for under $20" that you need to perform (or check if they've been done) on your car.
As for brakes, there's no need to spend thousands of dollars on brake upgrade kits if you don't plan to track your car. Stock Pantera brakes in good tune will lock all 4 tires. Don't spend thousands of dollars extra to be able to do the same thing!
Anyway, the first thing you need to do is rebuild your stock brake calipers and upgrade to Porterfield R4S pads. That is probably the most bang for the buck you will get on a brake upgrade!
See AsaJay's excellent article on rebuilding the calipers on page 11 of the attached POCA newsletter from January 2009.
Here are a couple more threads/articles on rebuilding your stock calipers:
https://pantera.infopop.cc/top...stock-front-calipers
http://www.panteraplace.com/Sub1/page306.html
AND, unless your original worn and cracked brake lines have been replaced, you NEED TO REPLACE them with new braided stainless lines.