I know the Crowd Supply part isn't live yet but I wish this had some kind of ballpark cost, at least to an order of magnitude. Are we talking $300 or $3000?
For the complete monitor, a 13.3 e-ink screen alone has a retail cost of around 350-400 USD depending on where you look. There's also the FPGA and other components.
We have commercial displays of similar size available around 800 usd. So, adding up the manufacturing, development and other overheads my guess is it could be around 1000 USD.
The dev kit should cost less if we can source the monitor & enclosure ourselves.
I didn't go through the complete list of supported hardware but if we can get the dev kit work with old kindle or kobo 6" displays it should be an interesting diy to work on.
Given that a 13in e-ink display is 450$ by itself[1], and the FPGA costs about 75$[2], I'd guess north of 600$. I've no thoughts on an upper bound though.
To give an indication, similar e-ink panels (the likely most expensive single component) to what they seem to be using can be found on AliExpress for a bit below 200usd.