I just completed the Revell Spitfire, but I did the MK.I version. I agree with the above post. I also had difficulty with the wing/fuselage fitting and it actually resulted in a small gap. Definately do some dry fit runs before gluing. Decals were very tricky and very delicate and a good decal solution will be required. All in all, its a decent Spitfire model. I would also recommend the open canopy as well as the canopy would not line up closed. Check out the below review of the one I did:
http://www.internetmodeler.com/2001/october/first-looks/revell_spitfire.htm
Regards