Based on past turnouts for similar buy-in (340 bucks) tournaments at Parx, I think for the 1st main event (330 bucks buy-in), the following projections seem fair:
Day 1a ~ roughly 400+ entries
Day 1b ~ roughly 400+ entries
Day 1c ~ roughly 500+ entries (I think this day will have the maximum turnout due to the weekend aspect and folks staying in the area for the length of the tournament)
I think the total prize pool will definitely cross 350K for event 1; and, I think day 2 could easily have 250+ players after eliminations have occurred on the day 1 flights. The key to making day 2 would be to have a decent Q factor (chip stack to be as close to the average by the end of Day 1 flights).
I'm posting this here as someone had made similar projections yesterday