Time to replace or rebuild my pump?

I am on my third motor in last five years. Pool is 12 years old with original Hayward “somthing” flow 1 hp. Pool is 14000 gallons.

Bearings keep failing. Replaced shaft seal last summer with new US Motors 0.95 hp motor. Now making bearing noisr again and plate is oxidized.

Should I buy all new gaskets, diffuser, impeller, shaft seal and motor to see if that works or just buy a complete unit. Perhaps upgrade to 1.5 or dual or variable speed?

Worried I will rebuild everything only to have it fail again.

Ideas please and I will follow instructions and order parts.

Thanks