I was looking at you layout, they allow you to have toilet on your truck? That just seems a little to close to the food for me..lol

 
I spoke with the HD about it and they had no issue as long as it is a separate room, the door was tight fitting and it had a ventilation fan.  If we end up with a bathroom it would just have a self contained toilet inside.  If we were in an area it was not allowed or there were public restrooms close we could just remove the toilet and use it as storage.  Not 100% sold on the idea yet.  My wife will be running the truck during lunch alone, that’s the main reason.