While those wheels are cool enough to get for an lr3 even if an lr3 can already fit 18's, what I really want to know what you'v'e done with is the "2017 Range Rover L405 SCV8 Autobiography". I just got a 2017 RR SV AB dynamic and plan to use it more or less as a larger more capable station wagon replacing what my 2008 BMW E61 535xi mt6 has done for me since 2010.
However, being a rover modification nut, it already has the max allowable tire size in a Nokian ONE HT E load range 265/60-20 on the flush offset "Iconisis" 20x9.5" wheels you can see at Atlantic British and other rover sources. It's a perfect combo. Durable for all forest roads and basic off roading yet fantastic pavement traction.
Being addicted to having a fridge on trips, and in the past having to install "dual battery" systems, it's nice to now have the very simple option of a battery power supply unit. The Bio-something 1500w I've used 2 different 7 day periods ran the fridge the whole time at 39F for 7 days.
I did get the GAP tool for the RR as well as the LLAMs tool for on-the-fly height control.
To fit the 20's, it was required to remove the very cool and well executed carbon fiber brake air ducts from the wheel hubs.