You have the twin sister of my Mustang, springtime yellow and all. The only alterations I have done to mine is to put on a 4 row radiator, shroud, overflow tank, Monte Carlo bar and an export brace along with a two bowl master cylinder. Mine was running hot, and these alterations made it run cool. My old York air conditioner conpressor needs replacing, and that's the only thing I have in my project bag right now except for the backup light switch. But, I'll get around to that this winter. Years ago I bought the Mag 500's, but normally run the original wheels. As far as the rust around your cowl and your floor.......you need to get that crap out of there ASAP. I have some articles in the FAQ section of the classic section to help you through the process. I have to warn you though, it's hard work, time consuming, and expensive. The rust won't stop growing just because it isn't wet. You can buy cowl covers, but that only slows down the process if you drive it in the rain or snow. BTW....welcome to the forum.