Ah, now I see the problem. Without a FAC there will be no European Firearms Passport and therefore no easy rifle importation for UK shooters. Hence You need a license by the local administration that needs some time to obtain. The BDS has set a deadline that is already exceeded. I'm sorry that I heaven't thought of this before.
Maybe it is possible to get this sorted, even after the deadline, but Volker Blüm respectively the BDS has to be the official contact. In the event that a legal application is no longer feasible, I have to excuse myself for my bold approach but nonetheless would like to invite You to this event next year.