Not wasting any time on this project, I started taking it apart to dig into the firewall tonight. With a long weekend coming up, I plan to spend some quality time in the shop. Plan is to have the firewall off, and everything pressure washed from the tub forward. Engine, trans, T case, frame, front diff, suspension, etc. Once ALL the mud, grime and shit is off, I can figure out where to go from there, and get it ready for it's new firewall.
Oh, and my gas tank is all done now. Just need to clean up the level sender, and make a new gasket to bolt it back in. This is POR15 fuel tank repair kit inside, with POR15 black on the outside.