I am planning a homebuilt sailing craft that uses a sail similar to the Sunfish (image below) I have seen a few homebuilt sails that use metal electrical conduit for the mast and spars, and am working on a similar design for myself. In the sunfish a Gooseneck is used to connect the boom to the mast. $84 seems a bit much for one peice of a homebuilt sailing rig.
I had contemplated a Forged Swivel at $13 it seems more cost effective, and looks to be at least as strong. (Working load weight 3600 lbs for the 1/2 model) but would probably need to be connected to the mast and boom with rope or "C" clamps.
What is a good solution for the low budget homebuilt sailboat maker?