Have finally started the final procedure for getting the auxiliary diesel heater fitted to the discovery.
Much planning and back and forth between myself and the garage, and looking at other sources for information to support my plan, and the placement of the heater. It is going in the boot in one of the side pocket areas, trimmed back to mount against the metal shell of the vehicle.
I had planned on getting the telestart was 91, but it was an extra £400. Which is basically a remote control.
It will take under a week to fit, and then I will be much more comfortable in my long distance drives when I stop for breaks.
I am also pleased that I managed to save up the money for this project rather than relying on offered credit.