Hello Dear @KingProNoob2, @Marsh_Jiang and other UBports Firends 🙂
13.1). Did you get any progress and/or do you continue your efforts?
13.2). I found the quite fresh LineageOs 19.1 for N80xx here:
https://xdaforums.com/t/lineageos-19-1-android-12l-for-gt-n8000-gt-n8005-gt-n8010-gt-n8013-gt-n8020-beta.4363603/
13.3). I would be happy to get involved to help somehow to someone who could try to port this device to Ubuntu Touch 20.04 🙂
Thank you and kind regards~~ Piotrek~~pe3no.