Cross-sections of the wire show that it is aluminum. The kitchen was completely and totally gutted. It wasn't a matter of repairing it, it was a matter of replacing absolutely everything.
I believe that the wiring as is, installed after the fire, is dangerous. My grandmother doesn't want to lose insurance, that is one thing she brought up.
I briefly discussed with a cousin and an uncle the possibility of pulling down the drywall ceiling in the finished basement and taking a look at the state of things, possibly pulling some electrical out. If I can find a straight run from the attic down, I could probably run a few circuits.
Obviously, the ideal scenario would be to have whoever is responsible for this mess pay for the whole thing. If not, I guess I'll become acquainted with patching drywall.