Now that's my idea of a house! (Except 1 bedroom would be fine.)
Be interesting to hear how the tools are arranged in the Chinook.
In my '99 I made the passenger seat removable (with appropriate mods so the airbag system still works properly with the seat in or out - not that that's a concern prior to 1997). When the seat is out I have a box that bolts into the seat bolts and has three sides and a top (the side facing the passenger door is open). I load up my tools through the passenger door (into the open side of the box), and also a few in the foot space ahead of the box, and some stuff in the stepwell.
The top of the box has ~2" fiddles and I keep maps and travel snacks, etc. there when driving.
This puts the tools right by a door (those are in short supply on our rigs!), the weight in a good place, and corrals them as well.
Of course this only works on solo travels. But in five minutes I can remove the box and have the seat back in place, just like it was never gone (course then the tools get kicked out

).