Thanks Guys yes I knew abt the scoops etc under the wings and the armament but I dont really consider them major problems as those I consider cosmetic. I was really worried about the airframe. The nose wont be too bad then just use a shorter cowl. One thing I noticed was the spinner on the MK II is more blunt and was pointier on the MK IX. I have 3 books the squadron in detail, and the aero detail and the profile book which covers only MK I and MK II but few show all versions really good for differences between them. Also the tail I didnt notice any difference between them. Here is a website I found that I have been using for reference its called the differences between marks http://www.spitfiresociety.demon.co.uk/whatmark.htm good resource but i want to make sure they arent just shortchanging some of the differences.

Joe