First two answers, and already we can witness reading incomprehension, absolutely irrelevant comments not answering the question.
He said :"The first 3 conditions are “must”."
He did not ask you to debate whether E-ink or LCD was better. He does not want you to question his preferences.
My answer : wait for the Sony 13.3" reader demonstrated this summer :
https://www.mobileread.com/forums/sho...d.php?t=213019