I understand the reason for people wanting to do meets or cruises and stuff like that. It's nice to be connected to others who are sad or are mourning the same reason you are. The problem is that there are too many immature people who take advantage of events like this and try to use it to justify bad actions/judgment.
If you want to honor him or show your respects, I say the best way to do that is to honor his legacy and donate to his foundation Reach Out WorldWide.
https://www.facebook.com/reachoutworldwide
roww.org
He put his heart and soul into that foundation and by contributing and helping it grow, you are helping his dreams/goals come true.