haha, came here looking for the saurkraut mention! in my hometown there was a gas station pizza place that offered saurkraut (and banana peppers) and I thought it was quite tasty. :)
Sounds pretty good to be honest. In Sweden we usually have a side salad for pizza ("pizzasallad") which is close to sauerkraut, but not fermented. It's not uncommon to also put it on the pizza.