Griffon Spitfire (Mk.XII and others)- Questions to experts

I have a few questions for the experts on the subject above.
All the more for the use of modeling;

1. How exactly looks like the division line between the fuselage and the engine side cowling Spitfire Mk.XII? Should it be straight, sloped line, or vertical such as the Seafire XV / XVII. With small notch over upper engine bearer mount, of course. Known for me drawings are not compatible in this matter, and photographs that I have not give judgment.

2. Could it be that Mk.XII’s spinner shape and dimensions are identical with those of the later version (Mk XIV, XVII, XIX), except for number of cut-outs for the blades?
3. Could it be that the outline of the propeller blades for the Mk.XII is identical (or: very close) to Mk. IX blades? Of course, given that this would be its mirror image (left-turning version). As far as I know they were the same diameter, the shape of the base was similarly resolved. Also, when comparing carefully selected images chords seems to be similar.

Desperately looking for reliable Spitfire propellers drawings (all marks).

Regards
FzJgr