Rowley hates the sound of stir-frying or bacon sizzling. Go figure. He likes bacon though!
I agree that pairing yummy treats with things he is hesitant about will work, and very likely pretty quickly. As for the crate thing, my Alex objected to a crate for a while, as he doesn't like being separated from his group. He doesn't have SA, he has what I call 'separation annoyance.' Once he got used to routines, the situation got a lot better. I bet Kirby will settle in, given time.
Maybe he would prefer an ex-pen to a crate?