SUCCESS!!!! Well mostly. The bleeding process was way easier than everyone says and I'm all set there.
Temps are toggling from 190.4 to 194. Methinks I'm sorted.
However, after clearing the codes and driving a bit, the P1117 came back. I put in a new one (the lower one on the radiator), so I'm a bit confused there. Any ideas?
A little searching gave me a result where a guy cleaned up and did some dielectric grease on the contacts in the connector and all was well. The wire looks a little exposed, but doesn't look damaged in any way.