I would just recommend that as names are available, the members submit them to me as soon as possible. Ideally, if I can get some tomorrow, that would help in the process, if we are to invite witnesses for Thursday.
I would propose a deadline of Monday, just to give the time to look at it. If I do receive names after that, I will consider it. I would suggest the end of day Monday for a deadline for witnesses. It does take a few days to get headsets to the witnesses.