Gordon,
If you are in the States, check out Sailrite for info and supplies. I have
used them for years and found them to be very useful.
http://www.sailrite.com/
I have made an awning with zip on side panels with plastic windows in it,
fender bags, numerous small bags, and I am currently working on a cockpit
mosquitoes netting enclosure.
Ansley Sawyer
SV Pacem