A little more minor progress on the house fire situation
In my view, pex is great because it doesn't burst or crack when it freezes. Granted, I am in Texas, but the last couple of winters we have had 48 hours plus of freezing temps (into the teens) and I have had my outdoor brass faucets freeze and split, but the pex just expands and then when it thaws out the water flows and there are no cracks or leaks. I've had it in place 7 years with no issues. I definately recommend it - indoors and outdoors.