All the measurements apply to the mid-line and so are on the same plane. Practically no distortion.
Why can't one do photogrammetry and allow for perspective?
No, there is no POV from a 2D image that you can measure without ortho-recitfying it. You must "flatten" out the image to counteract the distortion created when you project a 3D object onto a 2D image. This is the only way to measure objects on a 2D image, which is what photogrammetry is all about; restoring the 3rd dimension from a 2D image. Since this is likely beyond your purview, your best bet is to create a digital 3D model of JFK, which you can manipulate graphically into the correct position to make the MB work, or not. But you are relying on the CAD's physics engine to do all the work for you and in the end, who is going to buy it?
It's so much easier to skip the CGI and use 3D surrogates instead, which anyone can do even if you have no photo-analysis credentials. That is the beauty of a 3D re-enactment using lasers. It's cheap and deadly accurate and anyone can do it to convince themselves that the MB was either feasible or