What does Dad want to do with the bike? Mostly for touring? 2-up touring? Any commuting? How much storage space and weather protection is he wanting? How about engine size and ergonomics?
It's a wide open market until you decide what you want your bike to do. The ST1300, FJR, V-Strom, Bandit, FZ1, and many others will all make fine sport tourers, but are vastly different bikes.
Personally, I would not vote a 9'er as a sport touring candidate. I went from an ST1300 to the 919 and there is a world of difference in range, power, agility, weight, and purpose.
2009 Honda Goldwing
Four wheels move the body. Two wheels move the soul.