Why not pick someone from the website and call them up and explain what you need.

As the fees are always for time and companionship only there is no need to state no extras. If you think it will reduce the price, it wont.

A good estimate of price is 200 an hr but for a longer period a grand should get you a long way; 1500/1800 will get you a long long evening with a very classy woman.

You must also consider whether the woman will want to be seen with you.