littlehelp on primer questions

[brans72]

I am having my car media blasted in 2 weeks and fighting which way to do it afterwards (see other post in this section). I will be installing 2 full 1/4's,full trunk from another car wth wheel wells,rear buttom section for back seat and shaving firewall but I am not sure which primer to use since body work will be going on. I see it as bare metal might flash rust maybe, but primer which to use and then 2 coats before work and after. Would I use the same primer for before and after body work?? I am little lost on direction and trying to figure out what is going to be best so studying different options so help a fellow member out. Brandon