How about a little love for the alternate USPS delivery vehicle, the Ford Explorer-based Utilimaster FFV?

^A Jeep legend, ladies and gents. 

So at first I was thinking yeah just buy the long block and save yourself the hassle, unless you really want to rebuild a motor - plus you got a few other Jeeps there with better motors that could be your first full rebuild.

4th option: buy another Jeep