Looking for people with experience with porta potty in their van. Planning to sit mine to the side of the shower, just like the combo shower/toilet. Like the small size and small price. Thinking of the mid size Thetford. Will build platform for comfortable height. The thing will not be used heavily (occasional midnight pee runs). Planning to put pull out wardrobe above that will slide out to side to make room for person. Am I asking for odor problems? Any comments / suggestions welcome.