i’m think it might be good to leave this thread up, just in case it helps direct others. i’ve seen the question pop up a lot more lately and it’d be good to have a landing spot in the search 
for those looking for the open-source/DIY version of norns, there are two options:
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shield kit, which has all components necessary except raspberry pi 3b or 3b+, power supply, and SD card. $200
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shield, which is just the PCB. $75
generally, @MAHMS, this type of inquiry is trade focused, which has its own section on lines. it is hidden, by design, until you engage a bit in the community. so, welcome! 