lmao...
I'd have to come out of the closet on the pyro front myself.

oooooooo pretty fire!
The pothos will do well wet or dry. It will shoot roots where it needs to in order to grow. It WILL attach itself to your BG too, btw. My mother had a living pothos border around the top of the kitchen for years. We attached just a bit of it (maybe a foot out on either plant) around the ceiling, and it grew all the way around the room and then overlapped. It was awesome. Too bad I don't have pics of it.
The brom won't do well with wet feet, so mount it somewhere that doesn't have running water.
From my reading, the wandering jew should stay moist, but not wet.
From what I gather, the pilea should be allowed to dry between waterings.
I think the pep needs fairly well draining soil, but I could be wrong on that one... I had a few of them that did VERY well in my CWD tank when she had a water dish instead of a FB and the soil dried out fairly regularly. They didn't do so well when moved to a wetter soil.
That fern is going to be way too big for your tank. You'll have to save it for another project.