Hay there!
I am living in capital of Croatia, I think I can help you great deal.
You should give me more details what exactly do you want and need.
I will be more than happy to help you.
I speak Croatian so I can easily communicate with Slovenians, Czechs, Montenegrins and Polish people. If they will not understand Croatian we can try in English. :)
I can help you organize and find florist, accommodation, place for celebration, cake...
Kind regards from me for now,
Ana