While poking around under the truck I realized the flexplate was missing. Last weekend I blew the truck apart and installed the new flexplate, along with cleaning and painting the section of the frame around the engine and transmission. Installed the radiator, shroud and fan, ended up with about a quarter inch of clearance from fan to water pump shaft. Hope it's enough!
Also, I have a WTB classified posted for a section of firewall - if you look at the passenger side you can see it has been chopped up. A previous owner had adapted a car heater to the truck and cut holes for the fresh air intake, fan motor and coolant lines.