I am new here and hope that I can get help throught my restore project. I have a 1950 Chevy 3600. I have been tearing it down to start on the cab body work. I noticed that there is a lot of rust inside the doors, like in where the window goes. I need to know how to remedy this. Can someone help me? I mean it seams like it would be tight to sand in there or even sand blast? is it ok to just spray as much rust stop paint in there or will it eventually get through to the outside. I do have to replace the lower part of the door but i am ordering the patch panels from classic parts.HELP!!!