Ah well Gazzer, 629 seems to have raised some responses so, just maybe, your intention of dedicating this project to the memory of late Lt. Richard 'Dick' Nunn, DFC is appropriate, particularly seeing as you had an interest in those aircraft which served in the Falklands.
Regarding drawings, perhaps you could measure the main dimensions from a museum aircraft and scale them down! How do scale-modelers go about building things without detailed plans?