I found these guys while searching for a Australian supplier of carbon fibre who has online ordering. I wasn't expecting to find anything so useful and convenient actually so this site was a pleasant surprise. The pre fab sections look really nice, especially the tube sections. When my stock of old tube battens runs out it's nice to know I'll be able to repair battens without having to pay through the nose for new ones.
www.carbonfiber.com.au/index.htm

Bought a bit off them over the years, great service and fast delivery.

I've used them for supplies and expertise to repair my dodgy masts. Brilliant. Except I rang them. Decent prices and arrived the next day.