I can answer 1 and 3, but i dont have the technical knowhow for 2, i suggest going in the IOTA discord, lots of great minds there who can probably explain that.

1. Coordinator will be phased out in steps, ETA is Q4 2018/Q1 2019 for it to be completely removed(ETA not a deadline).
2. check discord?
3. There will be an automated function for this in the newly developed Trinity wallet which is in alpha testing and just went thru its first audit, beta should be expected soon.

Hope this helps a bit, good luck!