Thank you for your responses. The one I was looking at was indeed an ESD, which I've been informed by the LAA cannot be converted to a group A, unless I wanted to spend a significant amount of money.
Ah, G, thank you. That makes for some quite harrowing reading. I wonder if the majority of accidents would happen regardless of the aircraft being flown, or if, in fact the aircraft themselves are inherently unstable and likely to cause accident. The other aircraft I have considered are a Streak Shadow, and a VP-1...
Hmmm.
Many thanks
T