Where did you get the XDA dimensions? 

Hi ! 
Not really an issue but I am a keyboard enthousiast and I didn't find any other option to reach you :) 
I am working on a project based on XDA profile and I will need to create a SVG file for my upcoming keyset. I can try to reverse engineer your 3D model but It is so much easier to have your informaiton :) 
Thanks,

Alexis