Sportsmobile is a few months old to us now, been camping as a family, and we're settling in on exactly how we want it setup for regular use.
So far we've added Aluminess ladder and custom roof rack, and nerf bars on the exterior.
I also removed the sink/water heater/cabinet to make more cargo space inside. Basically just gently unscrewed everything and installed black PVC sheeting over the floor/walls where the cabinet was and added footman loops for bungie cords and nets. Left the fresh water tank and pump operational for water access from the outside shower faucet. Pics for this area to come later.