That house is light-years more beautiful than the other—congratulations!
In terms of docking, this may be a "wait and see" situation.
Those whips are there because, although it might be "buffered by Stonedam Island," (just outside of that, by the Weirs, is often the worst wave action/chop on Winni) that channel is a popular route to/from Sally's Gut and, given the hazards in the area (circled on the map), it's not as wide as it looks. The extent of the wave action might not really be known until the season's underway.
It doesn't look like there's much open shore space, so I'd definitely look at floating docks for the jet skis. It looks like there's plenty of space to throw two perpendicular to the dock opposite the whips, and those things are pretty good in rough conditions.
Either way, I think finding a docking company you trust would be a good first step to figuring these things out.
Congrats again, and best of luck with your new vacation spot!
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