1. Yes I'm 80 11.4" is just fine
2. No that's why I went for the less powerful (and cheaper) OPPO Neo Pad
3. Always good to have a backup sim receptacle
4. See 2
4. Lack of RAM made up for by SD card slot so I can have wine (not the drink -although I do like a glass or two), maps and other apps.
Fed up lugging my Lenovo legion 5 (I don't use it for games) 2.4 KG plus charger back and forth on flights - I have removed the 1TB m2 memory from the Lenovo and now it sits in an external case (USB3) so it's flexible and portable so now I have to carry Neo + my data - less than 1 KG and smaller.
When I get back to the UK I may well buy a surface pro 9 but in the mean time this will do.