Brunhilde
I own GD28 D5 since 1990, and have made a lot of sailing in Denmark/Germany/Holland/Great Britain and a longer trip to Spain and Portugal and the western Mediterranean.
Today the boat is standing in the garden, waiting for better time and a repair, but it is NOT for sale.
Hopefully I will get a little time in the near future for putting in some more info.
Best Regards
Claus