Sorry to read where this is at- your frustrations and just letting it go.

Maybe try and find a fellow enthusiast in your area who would hook it up and run some diagnostics? Where are you?

Keep us posted- Im sure if bawarca was local he'd have you all diagnosed pretty easily!

One out there question...does your car have an electric water pump? A reported mode of failure is crazy fan speeds..USUALLY followed by pump failure. But not always immediate. Does your temp gauge look at all off?