Fantasy Casting: Brokeback on Broadway

Over at Towleroad today Andy linked to an unconfirmed rumor that Brokeback Mountain is on its way to Broadway, and that producers have Hugh Jackman and James Marsden at the top of the list for the leads.

Andy heavily disclaimers the rumor, and probably rightly so -- this sounds more like Wolverine/Cyclops X-Men slashfic than anything else. But hey -- if Carrie can make its way to the stage, why not a powerful love story like that shared by our beloved sheep-sitters? (Try saying that five times fast.)

So let's pretend this is a possibility, which leads to two questions:

1. Is this a musical?
2. Who should play the leads?

If it's a musical, I think Cheyenne Jackson is a shoo-in for Jack. He's a triple-threat (and then some) and he's got the boyish energy the role would require. Jackman seems a bit long in the tooth for Ennis, given that he's supposed to be getting married for the first time as the film starts and would be considerably older than Jack unless he was also cast with an older actor. But he does have the chops for it (literally and figuratively). How about Patrick Wilson?

If it weren't a musical (as I have no idea if he can sing), howzabout Tony winner Billy Crudup?

What do you folks think? Musical or no, who would best play these guys on stage?