Depends how much of a hurry.
If it’s like my C-max.
Remove the two side panels in the boot and locate the tail, brake and indicator wire on the left side and the indicator on the right. You’ll also need the 12V from the cigaret lighter on the right. Run some 2core wire under the boot floor from the right to the left, spliced into the indicator and 12V. I put the relay in the little storage locker on the left. You don’t need reverse for 7 pin electrics either.
12V powers the relay, and you need to splice in the tail, brake and indicator lights (I don’t bother doing the tail lights individually, who bothers putting parking lights on since the 1930’s)?
Under the spare wheel is a plastic cover about 50mm diameter, drill a 10mm hole in it to feed the towbar electrics through.
Basicly no, not in a real hurry, takes about an hour (assuming it’s not CANBUS). CANBUS you might be able to do quickly if it’s just a connector, but you’d have to buy that from a Ford dealer parts desk, and it might not be cheap.