Right. Here's an update.
It has been relatively recently stolen. (Months not years)
The condition of the vehicle has changed between when we first found it and yesterday - so, the perps are potentially still active.
I've logged it with the police. However, and to my purpose of the original post - we know how busy and under resourced the police are these days.
So if the owner happens to browse by these forums, get in touch and I can tell you where it is. I suspect it would be quick and easy to recover if you are a "proper" landrover owner - by that I mean, mechanically minded & practical.
Otherwise, in the time it'll take them to follow up, I reckon it might well be gone again.