John, in the final analysis you only have so many days - hours to golf. Maybe even a limit on what you'll spend.
So, obviously everything can't be done at once.
How much time do you have... what have you already planned for Whistling and the other Kohler courses... are you looking for something very close and convenient to Kohler, or do you have an hour or two one way to go play something else?
If you have only time for one other course and 1.5 hours travel time to get there each way, Lawsonia is your best ticket, IF THE WEATHER CHANGES IN A HURRY. The snow should melt by late tomorrow or Sat. But, conditions, dicey mowing, softness, etc will be around a while.
It will be a couple weeks before anything around here is in fair condition.
Also, 10-15 minutes from Kohler, if you just want a hoot, cheap and to see something of a museum piece (not masterpiece) try...
http://www.quitquioc.com/index.htm