Leave W out of the equation. She's not moving back at all. This is her stance at the moment.
^ This
Drew mentioned a couple of pages back that you just present the facts to her and let her make her own decisions on the property. If you can afford it on your own, things may be tight for a while. If you can't, where can you pull a few extra dollars from? You can't force your wife into anything. You've done so well to get to this point. Please remember what got you here. Controlling her isn't the answer.
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014