I'm not sure how big the real impact on society of that one is, but it's the kind of thing you could probably do pretty easily. Not sure what exactly you have

I'm not sure how big the real impact on society of that one is, but it's the kind of thing you could probably do pretty easily. Not sure what exactly you have in mind for it so I couldn't give any specific numbers, but I would guess $150 to $500 max if I was doing it, maybe a bit more if you want any super fancy addons, and that's including making the case. But you'd probably have to specify a layout yourself, otherwise that would be the hard part to actually get that one excellent. The rest is all pretty trivial well known engineering, making the layout actually feel nice to a touch typist especially would probably need someone who's very tactile and in tune with the subtitles of doing things by touch.