still looking for an arch

Hi Guys , Fishing is good, boat is running great, all is well.
I am still looking to get an arch for my V-20 ( I am in RI ) Most of the custom shops in my area are just to expensive, I admit the work they do is first class,but they do mostly bigger boats and the $$$$$ dont matter.
Any ideas or any one know where to go?
Thanks Capt K