Hopefully something here looks more like reality.
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Document > resize Document > to 5000 pix in x direction
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Perspective tool to draw the picture to the right perspective. Perspective tool you find on the second-bottom left corner of the left toolbar.
After that use the crop function and File > export.
How successful it is, only you can tell because only you have seen the reality. However, I guess there should be some more work on the proportions.
Regards Leif.