Nice work guys and I can't wait for this mod but I did notice something thats a little incorrect with the spitfire.
It only has a 3 blade prop which ended on the MkVB which has a much shorted nose and the exhaust is cowled by 3 pipes per side and is Merlin powered. The version you model looks to be based on is the XII or XIV (but with the normal canopy, not the bubble) which has a 5 blade prop turned by a RR 2035 HP Griffon 65 or 2375 HP Griffon 67 engine.
Sorry to be picky but its something I noticed.
Good work though, can't wait to play it.