ok, so don't por the whol thing. haha. por15 is pretty expensive, so i guess i can take that advice. the thing is, the car had been blasted, and now is being worked on. so it's been bare this whole time (about a month) and will be bare for about another month. por15 is was first thought because with the 3 step process it's supposed to be able to handle the surface rust, and might even do better with the surface rust. is there anything else that would be good, because i know once rust starts, it's not going to stop. and i'm sure there's at least really minimal surface rusting on the car as it is. i could ask for it to be lightly blasted again i guess...?
after the por15 that i'm thinking about coating the interior with, i have 100 sq. feet of dynamat. would that cover the interior space?