Now for something completely different - looking for ideas (Steno Render)

[Tiramisuu]

I've been playing with a layout for steno today

http://www.keyboard-layout-editor.com/#/gists/6599c70c2b7acd52210f02a4ad830873

It's still looking a little chunky and I need to model some G20 keycaps.
Currently it is a 10x4 1U keyboard.   Is there a 10x4 aluminum case being produced anywhere?

I can get a plate and pcb made pretty easily.
Gateron Clears for 35G and linear

I am tempted to stretch the board a little bigger to make use of already available planck aluminum cases
BUT where should I look to have a one-off aluminum case machined?   
A Sandwich case is cheap and easy but I am fond of full aluminum cases.

It has to be full nkro so I think that means wireless is out of the question.

... and yes ZX s/b KW

thanks,
T