Its imperative that the wet clutch MPS6 Powershift is serviced every 60K kms. You will see a lot of failures not much after the 60K kmson these if they are not serviced correctly.
Have you tried taking it to your local Ford dealer (not sure where exactly you are) for at least some diagnosis and a quote. You may be surprised in some instances there are good dealers around.
A reputable auto trans place in Melbourne you can also try below.
https://abautomatics.com.au/