Looks like the main thing to "worry" about is the dust shield for your brakes. Other than that it doesn't look too bad. Might have a hell of time getting those caliper and LBJ bolts off but they don't look too bad yet.
Thats considered to be a NO RUST vehicle here in Toronto. Rusty vehicle is something that has rust holes in it that would cause structural damage. Don't worry about it, just get it sprayed!