I must admit I'm not really sure I understand what you mean with
could you codify your rules above and put them in some kind of STEEM tool to spit out a list of candidates
From the small part I understand, it sounds very interesting. Would you mind explaining it in laman's terms?
It wouldn't be hard to write code that looks at posts from the last two days, if the author has a sp of less than 60 then you check their account history to see if they've ever powered down and their self-vote %. If they haven't broken the rules you can add their name to a list.
That is actually a great idea, and would save a lot of time and effort...