Sounds like you are continuing to handle things very well. Good news about the work picking up, even a little.
Great idea to take your son with you to look at places. Making him a part of a major change for him will definitely give him a sense of control over his life and surroundings that we all need to have to feel secure.
I realize that changing your home is not ideal, but I bet you will make new discoveries with your boys in a new place that will create wonderful memories. Don't boys like to explore things? So, you'll have a whole new place, neighborhood, etc. for exploration. You can explore with them. I think it sounds pretty exciting, really.