I'm posting these in the hopes they'll help someone in the future, and also to serve as 'before' pics while I'm waiting for my POR 15 kit. The little silver stud in the first pic is the drain bolt closer to the rear of the truck.

FuelTank01.jpgFuelTank02.jpgFuelTank03.jpgFuelTank04.jpg

The little piles of rust are just that...loose crud. I dragged my fingers through them and the stuff came loose with no effort at all. Some moderately high pressure water would knock most of it out. It looks like the rust holes in my tank are underneath the square tray where the fuel pump sits. I'll have to make sure to blow the crud out from there, and spend some extra time circulating sealant in that area.