i just came across your post via google. You can find an active community around LIS - of course - in Germany. There is a lot of infos, tips and other restoration projects, for ex.: Klassenvereinigung e.V. • Thema anzeigen - Vom Angelkutter zurück zum Jollenkreuzer
. Google translator will help you with some basics, but its usually no problem to ask questions in English.
As far as i know a handfull of LIS is spread around the globe.