As I like to find extra work (and then complain about it), I came up with a version that has Westland type canon covers. These are resin parts from AML with a dedicated set of decals (purchased separately). Thanks to Erik here. Thanks to the hobby saw, it was possible to perfectly saw the above-described covers from the resin form. Let me mention that when cutting the resin, it smells very unpleasant with solvents. It cannot be denied that I am not a Spitfire specialist, so if I am doing something wrong please let me know. I would also like to add that the hull folded unexpectedly well (kit didn't have any montage pins!). Wings already worse, but acceptable. It seems to me that the company presents more or less Airfix level. Except that it has a much better material and definitely more interesting versions of painting.
1 attached image. Click to enlarge.