That is true but probably more likely to be honest than some others out there.
I would look through some of the on-line magazines or ask some of the LR owners on the site as there are many.
/i am not generally into LR/RR so please take these as a quick search and in no way gospel.
One site where there are some for sale maybe those dealers are interesting to you -
https://www.lro.com/for-sale/ A forum where they may be leads -
https://forums.lr4x4.com/forum/12-range-rover-forum/ A company that does re-engineering of classic RR's -
https://www.kingsleycars.co.uk/range-rover-classics-for-sale/A car company that works on classics -
https://www.petervardy.com/heritage/search/ A specialist -
https://www.bishopsheritage.co.uk/https://www.simmonites.com/vehicle/1987-range-rover-classic-200-tdi-left-hand-drive/This is here because they have some lovely classics RS2000, Alfasud Sprint etc.
https://www.simmonites.com/cars/