Slow, Driving Rustoration 1972 Dart

Oh I know too! That's how I lost my 70 Dart 30 Years ago. Took it all apart, had a knee injury, went back to school, lost my storage location and ended up selling it. I'm mostly worried about doing a good enough job to combat the inevitable creep of rust.
How bad rust we talking? Got any photos?
My story is my dart was my everyday driver and due to being young and dumb and honestly not knowing what the hell I was doing lol I locked the slant 6 up due to a severe oil leak. ( completely my fault) any ways I striped or completely to restore. I got the body done and painted it (el cheapo paint job) then I bought my barracuda and starting on it. It got all my attention until my first kid was born then I got away from both of them. Ended up selling all my cars except the dart. And it had sat completely gutted until now. I could never bring myself to sell it. Every spring for the last 10 years Iv said I'm gonna work on it and finally this year I got around to it. With some motivation of course lol