1) Check FCOM 3.05.35 - P2 (In Flight Performance - Go Around, CONF 2) and on the P3 you have the same data for CONF 3.
2) It's still a G/A, you may not get airborne in a CONF FULL config ... should also be retract one step. Concerning rotation, according to airbus you should select idle reverse immediately upon touchdown so if you want to g/a you have the speed, if you don't you didn't selected immediately reverse and that would put you in the position to ask about the rotation speed
3) If you are in Conf 1 + F you are probably not yet on the G/S and pretty high above the rwy, why would you use Toga when you can just push to level off and follow the g/a profile ?
Hope that answers your questions
