Over the last week or so, I finished bead-blasting the hood pieces (actually used garnet on the top pieces, since they had some rust). I spray epoxy primer on the top pieces, and then a thin coat of sprayable polyester filler. I sanded down the filler (a dusty job!) and test-fitted the top pieces to the car. Finally I primered the side pieces. They have no significant rust or dings, so they don’t need any filler.
In the next day or two I’ll spray the outside of all four pieces with urethane surfacer and wet-sand them. Then they will be ready for the finish coat.