edson
I just finished this past weekend building and installing a cockpit table in my OD 28. Edson has a website and if you search at the web site for "cockpit tables" it will take you to a page with a drawing of their table plus an option to buy the hardware without the wood for a table of your own design. This is what I did. I built a 24" long by 17" wide table out of 4"X1" dimensional white oak. I glued and used biscuits to assemble the table, sanded it down nicely and attached the hardware kit at the boat. After I had the thing fitted to the boat and it worked, I removed all of the hardware from the table and applied four coats of Sikkens. I suppose the varnish is a matter of choice but the rest of the wood has Sikkens on it so I went with it for consistency.I reinstalled the hardware and installed the table to the helm station. It works great! Of course you should pre-drill all holes in white oak or teak lest you crack the wood. I also installed white oak side rails out of 2.5" by .25" material. These are to keep objects from sliding off the table.As I recall the kit cost about $120 (US). To buy the table built and ready to go was well over $400. The wood cost me $25. Do the math and you'll see why I did my own. No doubt the prices on edson hardware is an outrage, but it is quality stuff and it is available. I suppose you can engineer a system of hinges and devices to attach to the helm gaurd and it will work OK; but it will require some machining and fairly precise measurements.Good Luck,Mike