Haas doesn't want to play, it seems, so yeah, Kohlschreiber and Kiefer for the singles matches, no doubt about it.
I so so much wish you are right. I will be there and the tie will start only one day after my birthday... it would be such a nice present to have Kiwi there, too.
It will be 8 weeks after his injury. He said it will take 4-6 weeks until he can play again so he should be fit in time!