I'll have to go and have another look, 'cause I didn't see the tag. Maybe, it's connected to the back of the PCB. However, they aren't in the Kobo's and the tablets that I opened.
Hope that you're right, of course. Within 20min I found
this digitizer with dimensions 17.3cm x 22.5cm Given that the Note Pro measures 17.2cm x 24.4cm, it would leave me room for the bottom button but I would have to sand off the black plastic ridges at the sides. (Resistive technology, though, so that's not perfect.)