Thanks for the tips.
I've been pouring over the forums here and am already pricing out a new WP anyway. I figure it's got over 100K miles on it so if it hasn't been changed I'm doing it along with it's gaskets and t-stat. I hadn't seen anything about the temp sender yet but will get one anyway.
They said it mildly overheated. Her dad was driving and noticed it stumbled then began to have the temps creep up. So he did the smart thing and pulled over and had it towed home. A garage that has talked her into thousands in repairs told her the HG's were gone. So far from what I've been able to find by searching a mild overheat shouldn't have blown the HG's. I was thinking that the impeller grenaded and that caused the stumble. No more coolant flow, the temps start to climb.
I'm going to back flush the entire system once the old WP is out to make sure it's fine as well as change the oil. I'll know pretty quick if there is AF in the oil. Oh yeah, the plugs were pulled and were fine. Mind you they didn't drive far so any AF fouling may not have had time to show up. I'll do the normal check for 'snot' on the oil cap and go over all the fluids and drop in new plugs. Wires and such only if they are needed. I'll need to get this done since it has to have an e-test and safety in order to plate it after the sale.
I do Blackstone UOA's on my other two vehicles so this one will get a sample sent off of the oil that is drained before my initial change.
Worst case, I do the HG's and I get to use all my tools again. I never buy older cars for their lack of required service. I buy them because I can do almost all my own work on them.
