From your user name I thought you were in NZ, but then I looked where Stevenage was.
If you were in NZ I could steer you toward a complete set of manuals (flight/maintenance/parts) for the NF11/TT20.
I'm sure the info you need would be in there somewhere.
All I remember was that it was nicer to work on than Spitfires, which I really didn't enjoy working on all that much, but still decidedly British, with lots of BA nuts and bolts and that peculiar British smell.
It also had a black painted cockpit that was very dark and easy to lose things in!!!
Which Mark are you interested in? Fuselage length differs between early and late singles, and again with the two seaters and the night fighters.
Wingspan also differs with 2 different wingspans available.
F8 was most common (one flying in Australia). There is a T7 and an NF11 flying in the UK.