Eric....from the land of fruits and nuts (I'm a native CA).
Evap cleaning instructions are in Techinfo. I think they used something smelly to clean it. I'd do it again myself using what that article up there says. I've done it twice on my own, and once on another member'* car. Worked great. Mild smell for a day or two, then fresh and clean. Also consider changing your cabin air filter. 00 and newer have them. Wish I did.
Dead rat smell may have permeated the filter.
For your trunk leaks, there'* alot of information in this 2000 and newer forum regarding those. You should have no problem then.