a bit of advice from an "old" FT do organizer. All this throwing around of options is going to get you a 10 page thread, and absolutely no progress.
Whoever is organizing (mowogo..I'm talkin to you

) needs to pick a location and a date. Choose a few "young-elite-friendly" events, and see who responds. It may end up that only 4 of you show up, or there may be 40. You have to be ok with either outcome.
The most important thing is to pick events that YOU are going to enjoy, so that in case there ARE only 4 of you, you're at least doing something you like for the weekend.