Thanks Chris.
I have saved the larger off cuts from the Sportboat, (pre laminated panels from ATL)as you see in the pics and was using these as the main beam stations. I love clear timber so I will be covering the deck with ply and 2oz cloth for strength and best UV.

I do have this question for any one reading that might be able to help, what is the best ply to use on Mozzie Decks? I have used Caboon in the past, but there is a fairly new ply replacing the Caboon called "Goldcore Light Plywood" apparently is 38% lighter then Marine Ply and for a 2440 x 1220 of 4mm its $39.30 per sheet. Any feed back would be good as I'm ready to start ordering this part of the build.
Thanks
Damo ;-)