Wow, far distant memories.
I remember the aircraft very well from the late 60's/early 70's as it occasionally landed at Salmesbury where I was learning to fly Gliders (Blackpool and Fylde Gliding Club as it was then). I do remember it once coming into Salmesbury with Rolly Beamont and Stan Jackson. Light aircraft were not normally allowed in but, as Mr Beamont was the Flight Director, I don't suppose anybody was going to argue with him. A couple of our instructors were given short flights by Stan. I'd been told it was Stan Jackson who built it but it could have been apprentices.
I regret I have no details or photographs that I can recall, just failing memories. It is just possible that some of the "Older" Members of the Bowland Forest Gliding Club may remember it or have Photo's?
Good luck