Body Work Tutorial

OK so what is the best way to go when doing the interior body work? As you will see from the pictures below the floor pan is in really good shape except for some surface rust ( It looks a lot better in the pictures than it did a few hours ago:D.)

Should I wire brush, sand the rusty areas to bare metal, then use self etching primer and paint? That was my plan at least. I also removed any seam sealer that was brittle and crumbled when touched. Eventually I will do Dynamat, but I want to seal it all up and remove as much rust as possible before I do that. Is there any techniques, prep, tools or paint materials that you recommend? Sorry to change gears a little on you here, but it is still body work. I just want to make sure I am doing what is best for my ride without having to media blast the whole interior and spend lots of loot.