The PTU procedure is basically the same for any Ford/Lincoln with a PTU so if they haven't done a Lincoln see if they have done an Edge, newer Explorer, Taurus, Flex, etc.
My old transmission shop said they have done PTUs on a lot of Edges.
The transmissions are very similar to be it the 6F50 used with the regular 3.5 or the 6F55 used with the Ecoboost