Back in 2003 my father was in a Florida campground for the month. He was in his 5th wheel camper. His 89 chevy pickup he pulled it with lost oil pressure. Another retiree buddy in the camp ground who was a handy guy dropped the pan and did the bearings seals and oil pump on the grass/dirt ground. Truck ran great and he sold it in 2005 still running great.

Mike
What shop has the truck /? are the good and can just put bearings in it like said if so that's what we did back then and only the mains and seal

10w30 has no place in an old worn engine unless you can confirm the oilpressure is still good.
20w50 oil should have been put in it a long time ago.

Since you have the pan of anyway, now is the time to change the bearings, as long as the journals don't have deep grooves in them.
A timing kit and a HV-oilpump will bring many more years in an engine.

I'd fix it, that's a good looking truck.

I don't understand your answer, bearing replacement is your cheapest out.
How many miles per year do you drive this truck?
How much longer do you hope to drive it?
What is the primary use of the trunk?

Would you do rebuild yourself? I didn't see it if you mentioned it.

If you are doing it yourself, I'd do a complete rebuild too, other than sending out for machine work. You know it'll be assembled right, save money, and won't leave you stranded. The truck is solid. If you're not doing the work yourself, I might just drive it until it dies.