Update:

The good news is that replacement of the radiator and fan clutch has solved my high operating temperature problem. I've never had to replace a radiator, so this was unusual to me. Temperature is back around 85-90 C, so I have peace of mind for now.

The bad news is that the old fart couldn't get the water pump off. I have two pretty well stripped allens that are going to have to be dealt with when the water pump does go. Who knows how long that will be.

Thank you for your ideas on removing the stripped bolts. I see spot welding in my future. I'm disgusted by the bolts, but will try to not be too pissed. Life's too short.

Peace.