I have a practically new PCS transmission unit that I had in my fummins. It was installed and working for roughly 3k miles before I tore truck apart. Worked flawlessly and was very simple to use. Currently has a 4r100 tune that Levi sent me from Elite.
$600 shipped
http://www.powertraincontrolsolutions.com/product/TCM2000/
$600 shipped
http://www.powertraincontrolsolutions.com/product/TCM2000/