Its good to see your enthusiasm. Being 27 (almost 28) now, I had a tough time working on anything on my car when I was in engineering school. My car was even in a different state. The car and engineering school both are the same in the way that they are both tough, but the juice is worth the squeeze.
The Hotchkis TVS would work well if you were needing to replace all the parts at once (springs, etc), however, without wider tires, its not going to be close to its full potential. The borgeson box does rock...highly recommended.
I would try to find a used welder with a gas bottle. I have a Clarke 130EN and you can do nice welds on thin-ish metal with that. 220V are always better.
The paint on my car is probably a lot worse than yours is lol