Please check here and see if your screen requires a 5v mod:
http://sudomod.com/wiki/index.php?title=GBZ_Screen

The problem you're going to encounter trying to use a powerbank is that they're all going to be using a one-off sized LIPO, or 18650 LIONs, neither of which will fit inside a DMG without significant remodel work.

Check ebay, ton for sale there.

I think everyone leaves the rounded corner simply because it's the easiest route. I would personally prefer a square screen in a custom build.

Looks suitable for printing, but there will need to be some subtle design changes to make it optimal.

How are you planning on joining the two halves together? You've removed all the screw posts.

I've been putting some time into the wiki for these kinds of things.
For future reference, this information was already on the wiki for V7 boards:

http://sudomod.com/wiki/index.php?title ... #Variant_7

I'm afraid I have no idea how to resolve this for you. The top two chips are pretty standard linear regulators at 3.3V and 1.8V output respectively. The left 8 pin chip appears to be an EEPROM if I'm reading it correctly, and I can't find squat about the right one. On many boards what is required is...

Does anyone know how to deal with the white stress marks on the clear shells? For example, after snapping off the posts around the screen, or after dremeling?

An example:

Also behold this strange flickering after maybe 30 seconds of idle time on the screen. https://vid.me/4OM7 That's pretty much what mine did , turned out to be a power issue. It worked, so long as the voltage was high (5.1+) that the powerboost could pump out, but the nominal 4.8-5.0 that my wall ch...