poptop advice?

I recently aquired an old e-350 van that was used to transport medical patients. It has a raised roof for the ambulance style, but doesn't support full hieght standing. I cut out a section of fiberglass between the steel supports and framed in for a poptop. I thought about the design I've seen on here for solid walls, but decided to keep the profile lower by just sewing in fabric.
The problem I've encountered is how to put in supports for the raised roof. I thought about wood supports on hinges that would fold up as you raise the roof but was wondering if anyone knew of any special hinges, hardwear or other ideas that would make it stronger and maybe easier to raise?
Pulling a tear with this will make for much more sleeping room for others who may travel with us so I'm hoping it will end up durable enough that someday our whole family will be able to camp. Thanks for any ideas you might have.
A.
The problem I've encountered is how to put in supports for the raised roof. I thought about wood supports on hinges that would fold up as you raise the roof but was wondering if anyone knew of any special hinges, hardwear or other ideas that would make it stronger and maybe easier to raise?
Pulling a tear with this will make for much more sleeping room for others who may travel with us so I'm hoping it will end up durable enough that someday our whole family will be able to camp. Thanks for any ideas you might have.
A.