Should I rebuild a "good engine" to fix oil leak?

Spray some degreaser on hit, wipe it around with a brush, and hose it off. Then do what wild says. Could be rear main, cam plug in back of engine, oil plug in back of engine along with what others said. If done right that engine will not leak a drop.

I would not rebuild it. Sometimes rebuilds don't work out too well and since the engine does not need it why do it?