Pangea Lifting Roof on Unimog U-500 “Perky Mog” http://globalxvehicles.com/global-expedition-vehicle-pangea-4x4-rv/pangea-lifting-roof-3/
http://www.motorhomepartsandaccessories.com/motorhomeroofladders.php has some information on how to shop for the right roof ladders for a motorhome.
Upper Bunk Ladder [Vanagon/Eurovan] - GoWesty Camper Products - parts supplier for VW Vanagon, Eurovan, and Bus
RV Roof repair. How to fix a leaky RV Roof
Aluminum Off Road Roof Rack and Ladder for a Ford Econoline Van
jeep cargo rack ladder | Wild Boar Optional Canopy
Building an Adventure Van - Page 233 - ADVrider
The Pecan tiny house from Perch and Nest.
Hoop.House | School Bus Conversion Inspiration | Roof Rack
motorhome roof ladders - http://www.motorhomepartsandaccessories.com/motorhomeroofladders.php