You expect me to read every word in a title? The radiator is a piece of cake ro replace. Drain the coolant, remove the hoses and cooler lines from the radiator, remove the shroud, remove the top of the core support, a couple of bolts and it's out.
Steering stabilizers will not cure or cause death wobble, they only mask the real problem that is causing death wobble. Oil pumps do not make pressure, they create flow. Bearing clearence and restrictions make pressure. It's the crank sensor.