As I play around with layouts for various components in a high top extended Transit I keep wondering about how to divide the heavy items in the build so you don't get too much weight on one side. Some VW Westfalias have a distinct lean to the drivers side because of the kitchen, and propane and water tanks -- all located on that side. Does it matter that much with these heavy duty haulers?
My initial plan was to keep wet bath, fresh water tank (inside), gray water tank (outside), kitchen sink all on drivers side to avoid crossing the van width with any plumbing. I want to keep all fresh water lines inside van to prevent freezing. I would try to locate batteries, inverters, stove, fridge, furnace, and VW-style propane tank on the passenger side to partially balance the weight of the water tank. That would mean crossing the propane lines under the van for the hot water heater.
If I moved the sink to the passenger side to be near the stove, would it be possible to route the gray water to a tank under the driver's side? Do others situate their components for routing plumbing or propane or just put stuff where they want it and figure out the routing?