That's an awesome rig. I would suspect that it'll sell soon (or in the spring). For me (and I wonder about others) it's a lot of vehicle. I drive the rig in my profile and it's pretty big and less complexity. I think you've thought of everything with this rig and I'd be overwhelmed with all of it. I don't have a toilet, shower, etc. Electrical is just a few wires, etc. No solar (do have a solar in a bag if I need it).
If I was looking for a new rig, I'd consider this and you've obviously spent a lot of time building it and thought of everything.
Good luck! Video was awesome!