Is she hot? If so post pics....
I disagree, always, ALWAYS say your price up front. People will try and screw you in the end, they have the advantage on you, why would you waste hours of your time, setting this up and not know what you are going to get paid? Thats wack. People will try and take advantage, they will think, hey this guy has everything set up already I can just low ball him because he isn't going to want to take it all apart again. THEN if you don't get what you want, the deal is over, then you have to take it all down, and you wasted even MORE of your time, for nothing. Get what you want and say it up front.