Where can I get a rebuild ket for a 4.7 along with a crankshaft kit. Should this take care of my rod bearing knock along with giving me plenty of more miles to put on the jeep.

Is this worth doing to a engine that has 160,000 miles. Or since my engine has high miles am I better off putting in crankshaft kit to fix the knock and drive it till she goes.

Thanks

The site I have for a crankshaft kit is-http://www.rockauto.com