Now that T6+DP and T6+AN have been posted, here is the template for the most popular non-historic version of the "Snake" Stuka, as profiled in Weal, and Leonard and Jouineau. Held and Obermaier had speculated that the aircraft identification letter was "C" but, with the photographs published by Urbanke, now is known to be "D."
This more imaginative presentation (with the snake in red) is available
here.
A frame from a newsreel showing T6+AN in flight (of which jamesdietz has shared a particularly good example) seems to have been the source for Watanabe's early illustration of the plane, which he surmised to be T6+MP. Fittingly, I have used his rendering of the snake's head as a basis for my own skin.
And here is a grainy screenshot imitating that frame.
And that's it for snakes on a plane.