I don't know if the starboard would be a good choice. It has all the good
qualities you mentioned but one that may not fit. Sealants don't adhere well
to it. If you were planning to rout out and bed the glass into the star
board then your windows may not be heavy duty. But if you meant to just make
trim strips that would be different. Another idea may be to buy some
aluminum frame stock and fab up some frames of have them done. Here are
people that offer such items. I built a windshield from American Marine
stock, but you will have to call them for a catalog.
http://www.americanmarine.com/
http://www.oceandynamics.com/
--
Ron White
My boatbuilding website is:
www.concentric.net/~knotreel