The arch Blue Heron gave you the link to is a steal at 400 bucks.
If it's still available it would be worth a few hundred in shipping costs to get it up to Ma.Hey at this time of year,even a road trip to sunny Florida would be justified.
I bought a custom arch for my 23' Tsunami made by Atlantic Towers in NJ,and it cost $1800.00 delivered to my house. it came with six rocket launchers and a radar mount.
I got prices of more than three grand from many others,which were way out of my price range.
At 400 bucks if that arch is in good shape,I'd give it serious consideration.
You won't regret having an arch over the canvas.It serves a lot of needs from holding rods,nets,antennas,and radars,not to mention that it's also a nice hand hold when water conditions are nasty.
Since this picture was taken,I've added a Radar and now have 10 rod holders on the arch.
