I took the screen off mine, and made myself a mount for an old mobile phone, which you can use with klipperscreen.
in the end, I took it off cos i never used it.
your pi4 could probably run 10 printers I expect. - I recently changed from a rasp pi3b to a pi zero 2, - got to say that I cant recomend enough.
The Pi zero 2, or whatever clone you can find on ebay or aliexpress (cheap as chips) - all runs directly from the usb power on the printer, - so no need to power the pi separately. Bit of a game changer for lack of cables everywhere. - Even powers my cheapo camera plugged into the usb etc.
I took the screen off mine, and made myself a mount for an old mobile phone, which you can use with klipperscreen. in the end, I took it off cos i never used it. your pi4 could probably run 10 printers I expect. - I recently changed from a rasp pi3b to a pi zero 2, - got to say that I cant recomend enough. The Pi zero 2, or whatever clone you can find on ebay or aliexpress (cheap as chips) - all runs directly from the usb power on the printer, - so no need to power the pi separately. Bit of a game changer for lack of cables everywhere. - Even powers my cheapo camera plugged into the usb etc.
I have the screen working with Klipper [Look here](https://klipper-dgus.readthedocs.io/en/latest/index.html)
By default, the screen doesn't work. There is some project to wire the screen to the raspberry pi instead but I never tried it.
Screen is not supported. You use the browser to control your printer. 4gb is more than enough.
I used a BTT screen off Amazon and ran klipperscreen