if it's still factory my gut is you will need a lot more weight. I've surfed a mondo from boater4life and it can make a good wave but he had to add upgraded rear bags, a front ibs and he usually ran with 5 in the boat.

we are on our 4th boat and none of them every made a wave worth talking about until we upgraded the ballast. current boat has 800lbs of lead on top of 3k in water and still needs another 500lbs when it's only 4 of us.

prop will only be needed if boat struggles to get on plane loaded up. I'd hold off on the prop until you get a wave dialed then see if it's needed.