I think you'll be hard pressed to get all of that in one vehicle. We wanted s dry bath and liked the slide of one model of the Winnebago Era line, but decided the slide took up too much space when in. We settled on a wet bath and that allowed us a bigger fridge, a king-sized bed we can leave made up in the rear, and a nice sized storage "basement" area under the bed with a sliding tray. I also had room to mount a tube for the slinky up under one side of the bed.
In general it is all about trade offs because there is only so much space available.
Dave