Lowering hard-top bimini

[BobMc]

Our DeFeve 41 is going to need a new bimini top when we get back home in a few months. Rather than replacing the entire top and enclosure with sunbrella/clear vinyl I'm considering constructing a hard top made of Nida-Core and aluminum/stainless framing, supported by aluminum/stainless side supports, and adding removable sunbrella/vinyl enclosure panels - it would be essentially a bimini with a hard-top and standard side panels.

The current air draft to the bimini top is 15 feet 3 inches above the waterline when the boat is loaded and I would want the new top to be no more than 15.5 feet max air draft. After adding solar panels it would be close to 16 feet. In order to make the air draft less than 15 feet to clear a few fixed bridges in the northern canals, the side frames need to be constructed in such a way as to allow the top to "drop" by approximately a foot or a little more depending on the final plan with solar panels added.

Has anyone aware of such a design or have any ideas about how the "folding/dropping" mechanism could be incorporated?