It’s probably also worthwhile contacting George Morris at the UK Weta Class Association http://www.weta.org.uk
The other suggestion is to consider importing one from France as over 100 have been sold there and they’ve just received a shipment of 2015 Wetas – so some of the existing owners may be looking to upgrade.
They have a Forum here http://forum.weta.fr/
And a Facebook Page which has a boat listed which would seem to fit your budget.
GREY WETA #457 still available for 6500€ excl. 20% VAT!
Although I think that boat is kept outside the EU – hence VAT has not been paid and you would have to pay VAT in order to bring it into the EU.
Hope this helps
Paul #325 Sydney (but originally from the UK)