PC, apologies if your engine really does have SoS mags. Very unusual!
Generators? - oh yes, common on older engines!
Yes, it does. Yes, it is unusual. Please do feel free to come and look. There are others on this forum who have flown the aircraft in question, as obviously I, as the owner, know nothing about the aircraft. Don't bother looking in the flight manual though, my approved flight manual is a scruffy bundle of A4 sheets giving information on a different engine and prop, with no other information that cannot be found elsewhere.
But the CAA, who cannot be wrong, have approved mine, so who am I to disagree?
Step Turn, I agree that a proper flight manual is a useful thing to have. I don't think many go in to the kind of detailed information that Cockney Steve has shared with us.