The topper will be installed tomorrow, so now is the time to really start thinking about interior construction.
This came from inhabit.com
This came from an airstream remodel
The image below is the bed of a woman who goes several levels higher in van/truck bed construction with T-slotted extruded aluminum. Check out her materials list.
Defying Normal extruded aluminum bed frame
The Toyota truck camper build will begin with the topper installation tomorrow. So far there are 2 sheets of plywood on the materials list. Defying Normal uses 1/2″ Baltic Birch for the visible plywood, finished with General Finishes “High Performance Water Based Top Coat”. The non-visible plywood was ACX 1/2” plywood, then covered with the same finish.
Truck Camper Hints 