I think the right thing for you is to take the job. A change of scenery could kick start things in your life that you need, and offers great opportunity for your career.
I skimmed the thread so i might not have caught to much with whats going on with your religious struggles but it sounds like the individuals in Wisconsin aren't providing you with the answers your seeking so a move to a new location might put you in touch with a community that can help you work through it better.
The tough one is your relationship, especially with the a young child. Could use it as a chance to breath life into a situation that hasn't been working and rekindle things, but if its at a point where shes looking for an out this could very well give her that excuse and moving across the country if your wife isn't going to follow takes you out of your daughters life which i imagine would be really difficult for you. Even if your marriage doesn't work out in the long run at least you would still be in the area to be in your daughters life which might be something to consider.