Many Thanks, sailaway. That is great info and I appreciate the offer of help! I cant imagine not enjoying the boat and am looking forward to cleaning her up and getting things fixed up. I have several sailor friends who highly recommended the Cal 20 for our local conditions and I was fortunate to find one reasonably nearby and in decent shape.
I think that I can access the transom from the cabin under the cockpit so it shouldn't be too bad (fingers crossed). Apparently the previous owner used the boat this way for about five years so hopefully no real damage has been done.