Selling a vineyard

Selling a boutique vineyard needs creative strategies to reach the target audience, I am researching techniqes that are the most effective?
In Australia there are over 5000 vineyards, the majority of which are small boutique operations. Some of these produce the most notable quality wine and successfull Australian brand exports. However when selling one of these businesses, reaching an interested International audience of prospective buyers is extremely difficult. Further details are available on request.