We have a private 22 acre lake we use for skiing. It has a large 2-boat
house, and our private campground, and that's were we keep our Malibu Skier
(350 cid/310 hp)...I probably spend most of my time there, as my kids like
to ski a lot.

My word, skiing with a 310hp boat on a 22 acre lake. That's about a 1000
feet X 800 feet, are you sure that's enough horsepower? In most states
it's "no-wake" within 150 feet from shore, that leaves about 700 feet X
500 feet to ski. Good luck!