Alright I've been reading a lot from you guys and I think I have the sequence right but I'd like to make sure.

-Strip old paint
-clean with wax and grease remover
-DPLF epoxy primer
-Scuff sand primer
-Skim with bondo
-flatten bondo using guide coat
-more epoxy primer once flat
-another guide coat sanding
-color coat
-clear coat

Also I will be doing the painting in a homeade paint booth in the back of the factory I work in. I'm thinking of bulding it out of 2x4's and heavy plastic. Then duct tape the seams of the plastic and install an exaust fan in one end and furnace filters in the other end. the room can then be positioned so the exaust fan is pointed out the door. Will this work? Is there a better filter that will filter finer dust than a furnace filter?