David--
Tom has given you a great list, but unfortunately you can forget all the private courses on the list if your trip is anytime before next June--
None of the Private courses open until the middle of November and with short days and members only polcy (Who geneally crowd those courses until Easter) you will never get a group on the course (if you individually want to play that is another matter, if you have a friend who is a member)--
Sratch Quarry, PGA private, Vintage, Bighorn, --Tom may pull some strings at Stone Eagle, and I hear the sole owner of Porcupine is considering membership sales at $4 mil(that is not a misprint)-- Anything short of that and Porcupine is only a dream--