Brokeback Mountain Opera?

Via The Rest Is Noise (Gay 12-tone cowboys) I learned that Charles Wourinen is talking about writing an operatic version of Brokeback Mountain. I can't really imagine how such a thing would work, since the characters are so un-articulate. However, if they were to do this now, I would definitely want to see Nathan Gunn in it. I also thought about Rod Gilfry, but then both cowboys can't be baritones, can they?