Jim - that itinerary looks close to perfect.
Sure, you could play Tain or grovel your way on to (overpriced) Skibo.
But, IMO, you pretty much nailed it for a 5 day trip.
Not sure when youre going, but keep an eye out for teeing off on RDGC (Champ or Struie) for a replay round at 6:00 pm when it is very quiet and you will play in some of the most magical light in all of golf.