I will be in it! 175 hours might be tough, but 100 is a slam dunk.
I was thinking it might be more like 300-400 players. I was assuming nearly 200 for the prelim and finals.
At 200 players, it is a free $500 entry, At 400, free $250, not bad at all. If it is under 200 players, I recommend a pretournament chop.