Hello Peter,
Is there another Europa in your area? Try contacting a rigger or sailmaker. They may know. What about a Squib? Our information indicates the Europa is essentially a Squib with a cabin. The rigs may be similar although this is an assumption you should check out to confirm. The Squib class has a large association (https://www.squibs.co.uk) in the UK. You might find some help there.