i just brought my 87 gt back to bare metal and urithane to try to expose any body work and get it done the right way with a welder.the car has no glass or anything.interior and exterior.im doing a complete color change even under the carpets and egine bay .to my suprize the body work that needs to be done i knew about already cause i hit a giant rock. but anyway i fixed it i have all the pieces off the car what do i do next i know i have to prime and seal the car but what kind of primer do i use for both the the car and bumpers/side skirts?by the way i have acess to a paint booth no rattle cans for me