Range Rover 1989 EFi 4 Speed Auto Reverse light Switch

Hi

I seem to have broken my Range Rover :'(

I have the 4 speed Auto but no reverse lights, been to my local Specialists who are saying "oopsie your Reverse/Combination Switch has quit" then they quote me insane prices (Then I cry)

I've found its the same as AC Delco's part number E2220 D anyone out there know if Lucas does this part or Bosch at a cheaper more realistic price (Under £80)

Or does anyone have one sitting in the garage I could buy.

Or does anyone know if this part is servicable ?

Thanks

Charlotte
Norwich