Stop in for a cup of coffee

So where do i stand with direct to metal urethane high build primer?
Looks like i may have to finish Barracuda so its more sale-able.
Going to do the filler work, And i give up on stripping entire car. I may permit myself 10 hours to knock the majority of the paint off.
That works I just rather use epoxy primer on lots of bare metal then primer over that or top coat.