I've not a lot to add to this, but it's interesting.
Genghis Sr (my dad, who is still very much alive and well) did his apprenticeship at South Marston building Scimitars, then went into the drawing office where he worked on late in life mods to the Attacker. Every few years I have to take my brother's kids to Yeovilton to see the Scimitar there as it's "the aeroplane that Grandad built", although Dad tells me that the exact serial number isn't one of his - it's close enough.
These histories and connections bring it all alive don't they?
G