One of the suppliers of steel I use is centrally located in El Paso. TX , I think that is because of central trucking routes. I believe you could find someone much closer if you are on the west coast. When I lived in Richmond, CA.near the old Ford plant I could get anything I ever wanted in the industrial market around the bay. Which was very nice to have. Both companies I worked for left California, so I moved too. Mark sent me a diagram of the board for the pre 1983 I believe his is 1974 but????? , I believe. I could forward it to you if its the right one to be useful. Mike Erg told me they changed the board in 1987 to lighter board only weighting in at 45 lbs. At this moment I plan on the stainless steel board with a two part epoxy white coating (then coated with white racing antifouling), so it can be seen clearly when in the down position. I don't care the color when its in the up position. I choose stainless because I also plan to install a stainless pin with a plastic bearing sheave. The pin will be capped with a plastic stopper in a way that the that when the stopper and the pin are removed the board will hopefully hang on the pendant and then be slid down either in the water or on dry land. I was going to use a screw jack but after trying it out on a model I found I would lose a lot of cockpit space for the assemble. But as try new things out I might find a better way to do this. I remember making my first wind-vane it took about ten attempts to get it right. When done it sailed my Cape Dory sailboat from San Francisco to La Paz, it was only good for 5 degrees either way but I thought that was all I needed for a small boat. Mike