Update! I've been trying to leave her alone to acclimate to her new home, particularly since she's been striking at me some when I tried checking on her.
She ate a small rat a few days ago, but only after I left it in her cage - trying to feed it to her with tongs she just made a few defensive strikes.
Last night was a little more positive though. I tried to take her out for handling and while she did strike at me it was less aggressively and less often. And, after a few minutes she relaxed a bit for the first time and un-curled her neck from the "S" position to explore a little.
I'll give her a couple days off before I open the cage again but I feel like we're starting to move in the right direction. My phone died and I need to pick up a replacement but once I do I'll try to post some new pics.