Hopefully that wireframe is accurate enough - it may need to be shifted up a pixel-height. If you look at the left-side wireframe of the fuselage, you can see the rectangular 'hole' where that patch comes from (this because it represents the access panel for the fire extinguisher stowed in the aft cockpit).
Here's the first one of mine I'm trying to get finished for the Wozza Texan, though at this time it is still a
very severe work in progress with a lot of polishing up to do. This repaint depicts Nathan Davis' restored AT-6D, which he had painted to match the P-51D "Checkertail Clan" that he owned, and is meant to represent a 'squadron hack' type aircraft. The base paint on this aircraft is a light cream color, rather than silver.
BTW, Marvin, I love what you are doing with the cockpit textures on that repaint of yours as well!