Is The Spotters Guide to British Locomotives in N Gauge availabe anywhere?

[chipperuk]

Does anyone know if The Spotters Guide to British Locomotives in N Gauge book is available anywhere. The EnGee website says it was due to be updated again in September after a break of a few months but still seems to be paused with no updates. I was hoping to be able to pick up a copy, even an old one, but can't find one anywhere.

Thanks if anyone can point me in the right direction or even better has a copy for sale.

Jason