Sorry for bringing this back to the top but I'm still looking.
I contacted the London Name Plate Man Ltd (and all the other links!) - I hit the same problem as always - minimum order!
I was hoping that someone who is still in the RAF (there must be at least a couple) could tell me where the RAF get all their gizzas. A contact number, a name, anything to put me on the right track. I am working for a small Middle Eastern Air Force and they want to buy the right stuff but in small quantities.
For all of you who recommended the non-equipment approach to planning - I agree. It is the way to go but only if you have a background of flying/aviation and a modicum of common sense and the ability to do mental arithmetic. Initially, however, the young guys I am teaching need to use rules etc to get it right - the instinctive way will come with time.
Thanks in anticipation.