Parking Sensors

[Cat-tron]

Evening all,

I've just acquired a second hand set of bumpers for a 2016 Ford Transit Custom which came with the parking sensors fitted, my originals lacked this hardware so I am curious to know what would be involved in adding these to the van? Is it an easy retrofit or a pig of a job, all looking to add tow bar wiring kit so hopefully I can combine both jobs at the same time. All helpful advice greatly received

Thanks in advance.