Sorry to hear Rich!
I don't think he'll have bearing issues if the coolant hasn't been in the oil long (from the sounds of it not many miles driving and an hour idling).
How's the oil look?
If the oil is still clean and doesn't have any coolant contamination, go for it. Maybe slap some new bearings in and plastigauge em if you are feeling froggy.
If the oil has a bunch of sludge in it... new engine. Or pull it and rebuild it completely. Coolant loves bearings, but it sure aint mutual.
I don't think he'll have bearing issues if the coolant hasn't been in the oil long (from the sounds of it not many miles driving and an hour idling).