SIKFISH 6.4 Hemi Build

I am using rust bullet (similar to por 15). But since you had the car blasted, you do not really need a rust encapsulation product. A healthy dose of quality seam sealer and paint should be just fine.

I too am avoiding using undercoating on the bottom of the floorpan, and instead using strategically placed dynamat on the interior of the floor to provide vibration dampening.