Just saw on CL, it's not mine:
http://seattle.craigslist.org/sno/rvs/5335718202.html
"This sale is for the top only van is not included !!!!!!!!!
I have a Sportsmobile penthouse top off a mid length full size Dodge B van
When installed and popped up it has convertible top material with windows and screens.
The rim created around the top cut out forms a lip for a bed so you can steep up stairs. (bed not included)
It's like putting your tent on the roof of you van and when not in use you can stand up in the van.
Then when you pull the top down it stores the bed ,side curtains, and lowers the top height .
Includes roof rails, u-tubs,springs and a top cut out blue print .