Removing/reusing fiberglass van roof

Yesterday I was at the u-pull salvage yard getting some bits and bobs for my Safari van. While I was there I saw a couple of full size vans with fiberglass bubble tops. These are left overs from the pimped out van conversions from the 80's. The tops had about 10, maybe 12" raises.
This seems like a decent unit to use for a tilt up top for my tray top camper that I'm planning.
Does anyone know how these 'glass tops are secured to the van? All of the exterior weatherstripping is in place and I didn't want to go in and dismantle anything.
My guess is that if I used it as a hinged top I would have to make a solid lip to the unit to keep it from flexing and cracking.
This design isn't new but the lines are sure nice:
http://www.truckcampermagazine.com/jake ... er-design/
In the article Jake shares the patent numbers for his camper:
7,281,744
D542,730
Using Googles patent search then hitting the 'diagrams' link in the upper left corner lead me to some other clever ideas. Oh...and some wildly weird stuff too!
Tom
This seems like a decent unit to use for a tilt up top for my tray top camper that I'm planning.
Does anyone know how these 'glass tops are secured to the van? All of the exterior weatherstripping is in place and I didn't want to go in and dismantle anything.
My guess is that if I used it as a hinged top I would have to make a solid lip to the unit to keep it from flexing and cracking.
This design isn't new but the lines are sure nice:
http://www.truckcampermagazine.com/jake ... er-design/
In the article Jake shares the patent numbers for his camper:
7,281,744
D542,730
Using Googles patent search then hitting the 'diagrams' link in the upper left corner lead me to some other clever ideas. Oh...and some wildly weird stuff too!
Tom