Maggie, you are a hoot! Too funny! Actually it's fun to tow my airstream but of course it's a little itty bitty one. I'm just giddy about it!
I full time in my Sport and I don't have any odor problems except when I burn my breakfast! I just put in some type of enzyme to break everything down. Then empty the tank when it's full. Cake! (ok maybe I shouldn't mention a food product when we're discussing this!).
Anyway, good luck racer155. I'm sure you'll figure it out and do just fine.