Thank you perestain for your work on this. Regarding the geo coordinates, here is a couple of Wolfram Alpha pages that might be of use.
This one is on the math more in general:
This one is on the syntax for using the wolfram console inputs:
I think you need the pro license to use the console for computation, but afaik once you have it, you can give it list files and convert the entries en masse and print the results. I've no first hand knowledge, but might be something to look into.
Anyway, thanks again and just thought I would share the idea, would be cool to get the positions automated too if you are still working on this. Regardless it's nice to have this game.