I have created mounting plate for the Gons pcb, which is based on the Standard TKL provided by swill at http://builder.swillkb.com/
I had to calculate the difference in the spacing for FN row and number row, and then make required adjustments for it in Sketchup tool.
The file have been placed on the following git hub project. I have created a fork of Moz's opensource case, and plan to modify it for Gons in the future.https://goo.gl/fnFSCU
can someone take a printout on a paper and match it with the GONS pcb ??