I picked up a used 2006 Interstate 6 x 12 a little while back. Its primary purpose is for work, as I own a small custom cabinet shop. However, I love camping, and my wife and young son would come out with me more often if I could keep them warm and dry. Winter is prime camping season here in CA, and if you're willing to take a chance with the weather you can often luck upon a beautiful sunny weekend with no crowds.
So, the plan is to make it a part time camper, while still being able to deliver a kitchen's worth of cabinets.
She's been around the block a few times, and I'm currently trying to work out a sticky brake.

The interior will need some cosmetic upgrade, and maybe a few windows. Linoleum, insulation and probably replacement of the lauan. Side door will get a RV-style latch. Otherwise it will be pretty spartan, the only thing I like to do inside the camper is sleep.


I think this can be accomplished with a removable unit that slides in the back door. This unit will include a galley kitchen toward the back, and folding bunks on the front. Here's a very rough Sketchup drawing of the layout. I (will soon) have a forklift to facilitate the storage/removal/installation of this unit.

Here are the bunks unfolded. The lower adult bed will fold into a couch, and maybe a pedestal table in front of that. The kids bunk will fold and stow above. Somehow.
My first questions:
-I want the galley to carry 20-30 gallons of fresh water. If the galley unit is self-contained, this will be very uneven weight distribution toward the back (60% of weight forward of the axles, right?). May need to place the tank at the front, even over the tongue?
-What's a good heavy-duty flooring material that can withstand a lot of abuse, yet remain marginally attractive?
Thanks all!