Should I rebuild or get a used engine, 2RZ-FE?

Had my truck for 16 years but I think the engine is dying with 240k miles. Hard start, rough idle, etc. Should I rebuild or get a used engine?

Where is the best place to get a used engine in Socal area? I'm in Corona, CA. In any case, I will not be doing the work myself. Cost of rebuild? Cost of used engine?

 

If you are doing regular maintenance, 240k is not very high mileage to need a replacement.

 

Hard starts and rough idle don't mean the engine needs replacing...

 

Compression test can tell you a lot i open these engines with over 200 and they still have crosshatch marks in cylinders , could be just a headgaskets ,burnt valve or need a cam all a lot easier and cheaper than an engine

 

Heck it could be a bad spark plug, clogged fuel filter, weak fuel pump... it could be anything.