Hope you found someone by now but if not:
Bailey Automotive Repair Inc
3875 Wynndale Rd, Terry, MS 39170
Phone: (601) 878-6766
They work on PSD 6.9, 7.3, 6.0, 6.4, 6.7, Cummins and Duramax. John has the Ford computer equipment. My 2012 6.7 was the first on in his shop. Out of warranty and parking lights would not turn off. Diagnosed with computer, replace BCM and reset.