05 zx-10r No red key

I have a 05 ZX-10R however i only have a single black key for this. previous owner claims thats all he has also.
im told i cant cut any new keys for the bike without the red key.
What are my options apart from having the local kawa dealer replace the whole ignition barrel / immobiliser. ($3k just for the part i hear)
is there anything i should worry about apart from loosing the single black key i have?
i saw something refering that when changing the battery you need the red key to start it? or is this bollocks?
Is it worth trying to pick up a part from a wrecked bike?
many thanks
im told i cant cut any new keys for the bike without the red key.
What are my options apart from having the local kawa dealer replace the whole ignition barrel / immobiliser. ($3k just for the part i hear)
is there anything i should worry about apart from loosing the single black key i have?
i saw something refering that when changing the battery you need the red key to start it? or is this bollocks?
Is it worth trying to pick up a part from a wrecked bike?
many thanks