Sorry to hear about the fire and your loss. But the whole time I was reading your post, I was struck by how you sound like you were level-headed the whole time and approach this new situation with a great attitude! Yes, the sentimental stuff being gone is tragic, but you're counting your blessings and I just wanted to say that's admirable how you're staying positive this whole time. Lack of sleep notwithstanding (and it's traumatic, of course, that's to be expected), I think you'll bounce back very quickly.
*lots of hugs*