Rhodium Silver was the colour I lusted after when we specced our fist V8S back in 2014 - The wifee convinced me that greys or metallics thereof, were for old men and we ended up with feisty IRR and black theme.
I can't help but think a part of me was right ;-)...not that I let the wifee think that at all!
To make it look a tad better, ditch the chrome badges and go piano black...looks so much better. Then satin black the chrome exhaust tips (Chrome Black is too much).
I'm not sure of the cost from JLR for black badges, but FWIW, I bought a complete OEM set of the Bay and sent them to a Hydro Dipper that I know many forum members have also used since and they came back wonderfull.
Here's my backside to give you an idea...