Bring the old one into a old time NAPS parts store and tell them it's from a 50's Ford Pickup. That was how I got mine. As far as I could tell it was a perfect match and fit right right in no mods needed. It was a several years ago but was only $40. Always remember Land Rover did most things on the cheap so they just took what was available and made it work.
1969 Ser IIA 300 Tdi hybrid
2002 Ford F250 Crew cab 7.3 diesel
2003 VW Jetta wagon 1.9 Tdi 5 speed
1992 Range Rover Classic ( my son's)
"Be the person your dog thinks you are"