Nice! Those are so much fun to drive, and to work on! If it's your first car, and you're working on some rust spots, a rust converter will work instead of cutting and welding in patches. I recommend removing all of the interior down to the metal and really cleaning it out. Especially with older cars this will make a huge difference in the ride: Spray a good coat of a rust protector on all the interior metal, (I recommend a Rust-O-Leum Primer spray), then spray over that primer with a couple of coats of a sound dampener/heat shield spray. After that, lay down sound dampening sheeting (Like Dynamat, but search AMazon or somewhere for less expensive alternatives to Dynamat that work just as well) and layer every surface you can with that stuff. For the floor carpeting, use "aircraft grade" carpet, which you can get relatively cheaply for a big roll. While you have the interior outside of the car, examine them really closely for any little pieces that are loose and could rattle from a loud stereo or road/car vibration. Take the time to really tighten everything down; knobs, switches, cranks, buttons, trim, etc. It's not quite as much work as it sounds, and when you're done, the interior feel will be amazing. Road noise, engine noise, & exhaust noise will be severely reduced while creating a perfect listening environment if you're into having a good sound system. In my experience, this is one of the most overlooked upgrades you can make while restoring a car, and it dramatically improves the overall driving experience to a huge degree. All the materials will cost around two hundred to three hundred dollars, and it's totally worth it. Wow, sorry... I just realized I wrote a mini novel here, lol. My apologies if you already have a resto plan and know all this kind of stuff, I just love talking cars and car restoration. Congratulations on your first car, Crota!