This kind of internal debate about when and where you might have drink sometime in the future under some other circumstances is --- as you say --- nonsense. This is just your addiction speaking, trying out little thought experiments to find weaknesses in your commitment.
Sounds like you have done more than enough research to prove that you can't just have a one off binge or moderate like normal people. It is extremely difficult, but if you can accept this for real then things become much easier.
I don't know how much sober time you got under your belt on your previous attempts, but it seem to take most people a long time to get past the internal struggle stage. I'm at 90+ days and that the obsession with drinking has by and large dispersed (for the moment at least).
Like a lot of the other responses here, I would urge extreme caution. If you think it's going to endanger your recovery, don't go (or make a firm plan to leave early before the "fun" starts in earnest).
Good luck.