I may put in my old thermostat (The temp sending unit went bad, and I had thought it was the stat at first) before I go...it seems the 'Tour is running hotter with the new one. I think it's opening up at a higher temp.
Anyways, I just prepped the engine bay a bit, and I plan on doing a good washing/wiping down when I get there, especially doing a bit more in the engine bay to make it look real nice.
I'm going to bring some Armor All in case anyone needs some! I've also got this new STP Son of a Gun tire foam, spray it on, leave it and it takes off the grime and makes it shine, and you don't need to wipe it!