Bowedtoothdoc, I would recommend you join the social group SSB and Ham Operators,
http://forums.lancer.sailboatowners.com/forumdisplay.php?f=126, on this board. There you will find another sailor doing exactly the same.
There are other forums on the internet such as Sailnet that has a discussion group on SSB and Ham operations. We would prefer you stay with us, but it would not be fair if I did not mention that site.
One alternative is to run a 43' length of wire (one site recommends stainless steel life line) from the stern to the top of the mast. Connect to the tuner and set a counterpoise. There have been comments of good results with this application. It should be noted that the length is important as some lengths will not tune all bands. So do look around.
Again, come join us on the social group SSB and Ham Operators.