Getting a 318 running?

That chain is not that bad. Those engines did not come with a double roller drive, so it's been replaced at some point.

Please don't try to replace the timing cover without removing the pump

When you buy the timing cover set, get a FelPro they make one that has a shaft repair sleeve for the balancer. We used to call these "Speedi sleeves" which I think was a trademark of CR seals.