Recommendations for primer(s)

I’m getting ready to mount the new quarters for my 65 Dart GoGo and would appreciate some recommendations on what brand or type of primer to put on them before I do. This is my first restoration project, so just assume I know nothing. I did do some motorcycle painting some years ago, but that was with lacquer or acrylic enamel. My plan is to use weld-through aerosol primer anyplace I’m welding (I’ve done this one the floor pans, trunk, sub-frame section, etc.) but everywhere else it seems like the consensus is to use an epoxy primer base, then lay urethane over it. I want to paint the insides of the panels to protect them from future corrosion and plan to lay undercoating in the same pattern the factory did. When everything is coated I’ll weld the quarter panels to the body. Any suggestions would be greatly appreciated. I’m not trying to build a concours show winner (I lack the skills or patience for that) but would like to do a good job. The car will be driven. Some photos of the first test-fit of the driver’s side quarter pictures are attached. Thanks!

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