If you're desperate for checker plate then I'd put money on this being one of the first after market accessories available in countries where it isn't an OEM option, as there are plenty of suppliers already selling them by the wagon load for Defender/Series vehicles.
Having personally fitted after-market checker-plating to a brand new double cab Defender in my more impressionable days (wings and sills
) I personally wouldn't want to put myself through that experience again: Drilling holes through perfectly good body panels knowing I was completely
with the paintwork and setting up all kinds of future corrosion issues felt like sacrilege!