I will start to help. many of the ladies offer GFE. You should start to email those who appeal to you. let them know exactly what you have in mind or as close as you can get to it. Get to know her better before a party.
This may not satisfy all of your requirements. Plan a multi hour party perhaps in a bungalow if you can afford it. Start out as if it were a date with dinner and a movie and proceed from there.