The only times I've ever been part of successful orgies were in a few situations:
1- Meet 2+ girls out somewhere, and bring them all home the same night with one/more of my friends
2- Organize a normal party with a bunch of girls who don't know each other yet, and escalate things until sex
3- Invite a "chosen one" (what I call girls who regularly bring their friends with them to partcipate in further orgies / threesomes), who are generally found at one of the previous two, and had so much fun they want to do it again. I've had these "chosen ones" who come back, bringing in 3 or more girls on different occasions. We somewhat tongue-in-cheek describe these new inductees as "sacrificial lambs" brought in by the chosen one.
never had to deal with exchange of money, but sounds like that might complicate things
But its just foursomes bro, not orgies
Kulbutor in Thailand actually mates, if you want some forecast infos, no worries pm me