GD,
Calm down and breathe in to this paper bag for a while before you hyperventilate! To answer your questions: too few; too few; too many.
Of course, seeing as how your thesis is going to secure civilisation, you could always try buying a copy of the current Air Force List from HMSO, Amazon.co.uk or, heaven forbid, on special order through a book shop (Price: £22.00 ISBN 011772937X) - a small price to save the known world!
