Time Gap between Church and Hall

Hey! We are trying figure out our hall and church situation. The hall only has a 6 start time and our church only has a 1:00. So we would have a full mass (getting done by 2) then how long would you say it would take to greet everyone, walk outside then go back in for pics? Was thinking of finding a park or something after for pics (I want the foliage) because Jericho Terrace does not have that. Our church would be in Seaford then hall is Mineola. Does anyone know if Jericho Terrace would have a room set up if we were done with pictures by like 5:15-5:30?