Maybe we better stick to the mast here and open a new tread for the beams, as the mast will be the more important and the rest is depending a lot on the outcome of that.
The reason why I am thinking of going into the beams afterwards is that I can not find 80mm alu tube with less than 2,5mm walls, I would have to make a special order for it = expensive.
I also got plans for a new cat today so I will not run out of “hobbywork”. <img src="http://www.catsailor.com/forums/images/graemlins/grin.gif" alt="" />