Thanks for the advice everyone. I ordered that part via eBay and it's on its way.
I know it's not the same issue but my cruise control has also carked it, which is a serious inconvenience for me as I drive to NSW (when permitted) 8-10 hours each way several times a year and I missed not having the cruise control on the last journey.
Ford have quoted me $665 for the part and fitting.
You wouldn't believe it but that same seller on eBay has this item for sale
https://www.ebay.com.au/itm/254808244956
Dare I try my luck and save another $600? I assume that listing has all the parts I would need? I've already read up on other threads about the contacts issue and have tried various fixes including spraying contact cleaner in the little holes on the side but no luck, unfortunately.
My only question would be who would I get to fit it because it is way beyond my capabilities? Would anyone have a recommendation in the Melbourne area?
Thanks again