Would you mind commenting further on choice of high build primer?
Nice work on the hood. Very unique, always a plus for me.
I personally use PPG K36 or K38. I have also used the evercoat slick sand bnut I use strictly PPG paints and like to use their entire system. I know it's a little pricey but you get what you pay for. Just my 2c worth.
Also, anytime I have bare metal I use epoxy first as dodgecity said.