Great discussion on Herculiner. What does it take to prep the interior? You mentioned that you used 2 gallons in your interior. I've got a Burban, would that mean that I would probably need 3 gallons to get good coverage? Also, what did you do to fill the void in the entry next to the door gasket? Mine could be a real b!tch to clean out. I figured that maybe someone could fill it with some kind of caulking other than silicone to fill it up.