recommendations for paint/sealing of the bottom of the unibody?

I blasted the underbody with medium Black Beauty after removing the seam sealer and undercoating . Took 700 lbs of B.B.. After that I used 3m seam sealer and tooled it into the seams . Next is etching primer and on top of that is high build primer . Then body color and clear coat . I used Lizard Skin on the interior floor and firewall and DEI above headliner and under dash . Wow, results were awesome . Good luck, Tom