blasting-welding-priming

I plan on blasting, panel replacement etc.. to a 72 duster. This is my first project and will take some time to replace metal.

What is the best way to protect from rust after I blast it and while the metal work is in progress over months?

I am a little confused by the options, epoxy primer, some type of sealer etc... or leave it bare and sand off the flash rust?

Central Montana is usually low humidity but this will be over winter.

Thanks in advance.