You might also try Rich Karrasch @
service@silverton.com
(800) 882-9266 ext. 2
I have lost track of a guy named Marshall Germany in St. Augustine.* He was the best for Mainship.* The folks you talk to now are good folks but in some cases their hands are tied because they were not involved with the actual production of the Mainships until this past year.
One more place to try is the Mainship Blog 2
mainship@yahoogroups.com
There you will find folks with boats just like yours and that had the exact same problems.