Just because you have milkshake oil doesn't mean you need new bearings.....I've fixed many engines w milkshake oil and never replaced bearings and they never came back w noisy bearings.
Absolutely agree with this because a headgasket can fail many different ways. If it's only seeping coolant into the combustion chamber. The bearings are in no danger.
This may not answer your question directly Stumpy340 but a 94 with over 200,000miles. Basic math on an average 25 year old truck. It might be more cost effective to move on to another truck or as Moparx said, just swap in another motor.
Since these motors usually outlast the trucks you can probably find a good replacement for a few hundred.
