repair cost for torque sensor

I recently purchased a 2008 Ford Escape and within a week had a notice
show up on dash "Power Steering Assist Fault" and experienced loss of
power steering.
Brought it to my mechanic and he ran diagnostic and got the code for power
steering Torque Sensor DTC B2278. Found out there was a recall on the
power steering system back in 2014 which it could of need one of 3 fixes
which this was one of. After calling Ford found out that this vehicle had the
recall addressed in Nov 2018 with a one year warranty which was up one
month before I purchased. Recall repair options stated if codes B1342,
B2277 and B2278 are not present, reprogram the PSCM and the Instrument
Cluster Module. If only DTC B2278 is present, replace the Torque Sensor.  If
DTC B1342 or B2277 is present replace the steering column assembly.
Once one of these repairs are made if alert appears in future owner is
responsible for repairs.
Not sure which repair was previously done but since warrenty is up I need to
repair.
Trying to get a ballpark figure Dealerships will charge.