Just tell us a place and time, or give us 3 options. In my experience with these size groups it's easier to pick a date and say be there than to discuss when and where :) (keep it +/- EU timezone for this occasion me thinks)
Next time don't download directly to your USB drive ;) also, you are probably not going to get the data back. You could try some data recovery tools (just google and find some free ones) else you will have to format and be done with it, good luck!
So.. CrimsonCyclist said to me that he would pay for the 10th guy if we couldn't get another person to join.. I don't see any reason he should be ending up with the bill for this..
So, I am here to suggest that we all split the cost if there is no 10th person...
It would add another 9.56£ per...
I'd like a check on the list too before I book my flight, maybe create a private conversation between all people going, and discuss the details in there?