Great build so far, can't wait to see what else you have in store!!! It's hard to find many people that change the interiors in EVC's and I want to get as many ideas as possible before I start doing mine. Love the addition of the back cubbies, can you elaborate or show additional photos of what you did with the heater ductwork? did you keep the original 2 ducts and route an additional one, (or) bypass those 2 altogether and do 1 bigger one? Do your cubbies still have the vents in them to allow circulation for the propane heater, if not what was your solution for that? You should sell a kit minus the wood un-assembled so I can buy one and build my own lol. Maybe its easy to find the materials and build it, I'm good with woodwork but never have used the aluminum you have for the frame structures.