Can’t help you with somebody in Kent area but I paid someone to retrofit highline and cruise control in Midlands area. Took no more than about an hour if I remember right. He also supplied all the parts needed which was just the clock and stalk.
I also retrofitted steering wheel buttons but this was easy if you have DSG and the steering wheel paddles already as the wires and space are already there. Just need to take airbag off and unscrew the blanking plates, and screw in and plug in wire for the buttons in its place. Lots of how to around. If you don’t have the paddles it’s not an easy process. You need to hack out the area where the buttons go. Not sure about wiring though.
Sent from my iPhone using Tapatalk