Dakota Engine swap help !

Has anyone here ever swapped a 3.9L for a small block in a Dakota? I have a 88 2wd with a good body and interior but a bad motor/tranny. Id like to build a nice driver with a mild 318/904. I cant find much (usefull) info on this swap other then the Schumacher kit wich is $400 for mounts.

What I need to know is whats need to boly the 318 in place of the 3.9L ?

What oil pans will work ?

What headers will work ?

Seeing the 3.9 is a 318 missing 2 cylinders I would asume its bolt in or close.