Gen Con 50 will be my second time visiting, and I would really like to GM. However, I only want to GM one 4-hour D&D 5E game - I'm OK with not meeting GM requirements for badge or lodging and would be coming as mainly an attendee. I would like to dip my feet in the GM waters, so to speak. I do have experience GMing, but not at Gen Con (or any con, for that matter).
So my question is: what can I expect as new, independent GM in regards to finding space for my single event? Can I do that somewhat easily on my own, or is it highly recommended (read, almost mandatory) to join a gaming group until I decide I will run enough games to qualify for GM badge/lodging?
I have very definite ideas of what and how I want to run the first game I GM (already have the adventure planned out), so I really hope that whatever options I have, I can run the game.
Thanks in advance for the advice.