Yes there may be warped rotors but that is because they were over heated. If you redo the brakes, put in new lines (rubber in front) along with new/rebuilt calipers. Do it all at 1 time. The rears I am not sure of ABS, but ford normally only had on rears so check your owners manual. Also R&R complete system back there. The ceramic pads are not recommended from what I have read for towing etc.
Hawk brand (I have never used) have been said to be good for towing but the set must be for the job it is to do. Sintered, semi metallic are the best for this but I dont know what they are selling anymore since the enviros complain about anything that actually did the job it was designed to do.