Tickford alarm

[CONGO MILLENNIUM]

I recently purchased an AU Millennium Fairlane the colour is Congo Green with black leather interior and the Tickford six with 140000 klms on the clock. It's a very nice car very comfortable and a pleasure to drive. Unfortunately I don't have a key for the Tickford alarm system which comes standard on the Millennium. So I have left the alarm unplugged. It takes a cylindrical type key, I've tried Ford with no luck, they wanted to sell me a new alarm for $2000, the previous owner couldn't help and every locksmith I tried said they are unable to cut a key as no one has those machines anymore . So maybe you guys maybe able to help.