Worth an engine rebuild on a 04 Honda Civic?

So a friend of mine had the engine go on his 04 Honda civic. Something to do with the timing belt (basically wrecked two cylinders). However he had, had trouble with the engine before, so the one that got wrecked was a replacement. Between the two of them (engines), their should be enough parts for a working motor. I could purchase that, and the car (everything else immaculate) for 600 dollars. (he would fix it up himself, but he has a family and no time for it) The question I have is, is it worth it? I have little experience with engines (but I'm pretty sharp and learn very quickly) and no heavy shop tools. I have the basics like wrenches and that sort of thing but nothing crazy. Is it feasible that I get this car running again or am I in over my head and should just not bother? This is always something I wanted to try as a hobby anyway - I thought this might be a good opportunity to get started.

Not worth it spend 3 or 4 thousand and you still have a 250 dollar car

It is not that hard really, but you have to do some reading to understand the abstractions of things like camshaft timing and putting on the timing belt.
When they threw the belt, the cam went out of time, and open the valves at the wrong time, like when the piston was up. This will bend the valves.
So the head has to be removed, the bent valves replaces, the head put back on, the camshaft replaced, and they the timing belt put back on or replaced.

An 04 Civic is worth a lot more than $250, there, sonny boy. You need a repair manual.

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