Sorry for the delay in the reply have been away with work....
Replicant, yeah there were a number of squadrons with RAF codes but the where only a couple of originals.. 3 sqn (P40's/P51's) and 10 Sqn (Sunderlands) that were in the Northern hemisphere.
The other RAAF squadrons were formed for the duration and they had 400 codes like the other commonwealth countries I suppose. Im working on a 464 sqd mossie at the moment. All the other original sqds served in the pacific.
(and I stand to be corrected, my history is pretty rusty)
Kev, I dont know how to change the spinners if you find out please let me know. Also I dont know how to weather a wooden plane, but if wood weathers wont it fall apart?