I thought you may need some gel-coat work, I have a guy who works from Hinckely that does finish work, Awl-grip, Gel-coat etc. but rarely has time for structural stuff.
You should contact Peter Alarie, he owns a 20 as well
Click here , and works at Guck inc. Guck inc. did some work for Blizzards 23
here is a link
www.guckinc.com