We had the arch on our Falcon 27, hinged, around £700, nice and simple.
They separated the arch at its attachment points and installed 2 plain SS hinges, nothing flashy just practical, finished off with 2 SS lever locks to keep it in place when the canopy is down.
I'm not sure if i can put an open post to tell you where we had the work done , but please PM me and I'll be glad to point you in the right direction,
Cheers