Nothingness: it would be difficult to tell before set up because in that case the opponent would make a set up based on that, giving their information back, leading to a change in set up from the 1st person etc. I'd say you make the set up and give the information before the 1st move.

Nothingness: Game I sent you an invite for is random colour and uncounted, meaning it is neither BKR rated, nor does the game count on your stats.

The order is:
1. Negotiation concluded
2. Game is setup.
3. White moves and tells
4. Black moves and tells.