Over the last few days I have been reading many posted messages on this site as well as infotile.com.au and learning a lot (especially from John, Tileguytodd, Rob and others). I did a search for all swimming pool related messages and found out most of what I need to know (I think... I hope) as well as being very entertained. Still one or two questions are still there. So to be safe rather than

, I have come to the experts (I hope that's enough buttering up). I have laid tile before on floors and walls but never on a pool.
This is what I want to do; remove all old coping, water line tiles and loose plaster and replace with new.
This is what I think I should do; use porcelain tiles, thinset, new coping, and get someone else to do the plastering.
This is what I don't know; 1) Do you put the coping on before the tiles or the other way around.
2) What kind of morter, mastic or thinset should be used for coping.
3) What size gap between coping.
4) For the water returns, do I chip the plaster away from them or raise them above the level of the existing plaster.
5) Should new tiles be set so they are above the existing plaster so the new plaster can be floated to the new level.
6) After setting new tiles, do they need to be grouted or is the plaster used for grout. If grout, what kind, epoxy or ???
A lot of questions I know, so any help and advise you could give me at all would be greatly appreciated.