Did you find a source? I'm looking for one myself for a 14 ft. 71 Larson. I'm in Indiana. If I find anything I'll let you know. What type you lookin for? Bout ready to give up and cut some plexiglass.
I have a windshield I ook off my 14' starcraft rocket. It has all the mounting hardware, does not have the gasket to cover bottom hardware. If interested PM me I will try and get some pictures later.
I found a guy near Detriot (http://www.dmirestoration.com) that can get custom work done I'm having him check on cost for a design he has already done in the past (low profile, curved, just happens to be on a Starcraft) , he has suppliers for frame and windshield forming, as I understand he fits it and installs the windshields there in Detroit area, I waiting for my estimate. Although I think it may be cost prohibitive for me.
I may just try to properly fit the one that came with my boat, a glass walk through from some other boat. But that will be down the road a bit as I have a long way to go before I fit a windshield.