Hey my lil bro works for a profesional paint shop and thats what he has been trying to get me to do is the self etching primer first and first but have yet to get around to getting some. small bare metal no more thatn a square foot is ok if no prior rust.

1. self etching primer
2. primer surficer
3. primer sealer
4. paint
all kinda good stuff that is costing you can do to get what you want done