It's your money, so you are free to do what you want with it, but I'd recommend being careful, if you don't have too much of it. Art can be quite expensive, and there is a lot you can buy with that money. An adult game is hardly very important in the grand scheme of things.
Take your time, it's not like work will start before I get the money and the art anyway, so there is no rush.
Since the art will have to be in my game, I'd like to get a look as the sketches get made (it would be bad if you spent money and then we found out I don't like it and don't want it in the game). Unless you want me to put you in contact with my artist (that way we'd know for sure the art would be similar, although that would depend on whether he is available for commissions or not).
I don't think the Zanti would care about cutting her hair.
What kind of details would there be left to discuss? What's your preferred way of communication?