I suspect it's more work than you will want to do at the end and beginning of each season. The cost of modifying the arch for a hinge will probably be costly as it will require reinforcing on either side of the hinge point.
I remember a thread a few years ago where a guy hinged his arch. I don't recall where I saw it though. I can attest that it is doable. I would think the trick would be keeping it water tight at the joint, so water doesn't run down the cable chase into the aft.
It should be four bolts to remove on each side. A panel in the aft of the 2800 reveals them on mine.
DE-arching
Linear Mode
