Hi Peter: I think it would be a stretch to expect someone to send you plans from this side of the pond. Hence, no replies to your message. I'm a transplanted Geordie,(20 years ago) but if the Libraries back home are anywhere as good as those here in SWLA USA, I'm sure that's where you'll find your plan. I joined The Lake Charles Woodworkers Club, and I know if I brought it up at a meeting, I'd have advice and offers of help out the Wazzoo. Try a local club. Good Luck.