Akillioon

Hey I've bought a FZ6-N. The owner I bought it from only had one key, a blake one. When I went to my yamaha dealer they said that you had to have the masterkey to registrate new keys, they also said that they couldn't reprograme the ECU and make me a new one. Instead they said if u want more keys u have to replace the hole locking system, and it will cost about 17k+ SEK aproximately 2K €. So now i wonder is there any cheaper easier way to get any more keys as reservs? Please help me if u know anything