Update: I’ve published the model to Printables under GPL3, and also to GitHub!
As for my next directions - I really want to experiment with custom input options such as a 3D printable input deck for a drawing tablet, or an Thinkpad X220 keyboard for example. I don’t have a FW13 yet.. but I’ll keep an eye out on eBay 
Alternatively, I have an old Thinkpad x201 I’d be quite interested in fitting a FW13 motherboard into. I know some guys have had some success doing so with an X41, 701C, and even an old Macbook, so maybe with some time and dedication it may too be possible!