Is it still worth it?

[JFP in PA]

Originally Posted by PLP

How do you know it broken?

Or maybe in other words, how can one tell it is about to die except oil inspection for metal shavings. Furthermore, how long does it take for it to fail?

Mine is 2003, 2.7, with 110k miles.
Clutch seems to be very good. Crisp engagement and smooth, hence not really needs to be done.

Finally - any way to tell it was done from "outside" or some "scope inspection"?

In order asked:

Easy, the engine is trashed.

You can't, its failure is sudden and totally catastrophic.

Not possible; you either have to take the car apart and look, or have documentation it has been done.