U163665, I used 3/6 aluminum tubes to make the "outriggers". I also stuffed the tubes with wooden dowels for added strength. There are also four 1/32 plywood wooden struts made in the shape of a cross. I used plastic styrene which to me was easier to work with, and I also used actual fishing line for the outriggers line.

I hope this helps...let me know if you have any specific questions about the process.