REMINDER - COVID-19
Any content, information, or advice found on social media platforms and the wider Internet, including forums such as YBW, should NOT be acted upon unless checked against a reliable, authoritative source, and re-checked, particularly where personal health and liberty is at stake. Seek professional advice/confirmation before acting on such at all times.
Users who are found to promulgate FAKE NEWS on the forum in regard to this issue, intentional or otherwise, may find their access terminated. It is your responsibility to provide references to bona fide sources.
FAKE NEWS, in this regard, is that which is posited by organisations, media, etc., that is repeated on the forum, or used to support personal opinion/hypothesis posted by users - FAKE NEWS is not necessarily the personal opinion/hypothesis being posted in itself, any issues with such should be challenged respectfully.
What is the maximum draft you are looking for? We used to own an 'Offshore 8m' which was built in the UK (moulded by Tylers), but was actually a Van de Stadt design, so I would expect there to be plenty of models in the Netherlands. It had a 1.4m draft - long fin keel - and I would think ideal for what you wanted: Offshore Yachts Offshore 8 metre Information
We lived in the Netherlands (well Limburg!) for 4 years and apart from the 2 hour drive to get to the sea, thought it was a wonderful country.