Okay well I took measurements (in millimeters), downloaded an educational version of AutoCAD, struggled for a bit to figure out how it works, then came up with dimensions for the front face so far.
EDIT: Oops, forgot to add the LED holes, will do that later.
Here's the AutoCAD file if anyone wants it. Basically a key has a width of 18mm and the space between keys is 1mm. I might go over the casing dimensions between clusters and from clusters to the edge of the case again as I'm going to borrow a set of calipers from my friend. These were done using just a ruler. http://www.mediafire.com/?88ky2a0njbcdtt6
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I have to take care of the 3D aspects of it next. Have to learn how to use AutoCAD a bit more before I tackle that.