Vinni,
You've mentioned speedywheels now a bunch of times in your rambling posts. Do you work for these guys or own part of the company - why the insistence on all of us checking them out so often?
Note that some members have tried to import products from Australia and both, wheel, tire and Engel fridge accessory manufacturers don't export from AU to USA for some reason or simply don't respond to emails or phone calls...go figure.
As far as replacing shocks to Bilsteins on the Range Rover Sport - that's not going to happen, running either 18 or 20 inch wheels is not causing rubbing issues of any serious nature. Those who had opted for slightly wider 20's either use a spacer or the rubbing is so minimal as to not cause issues.
I've got 85K miles on my RRS, running 18's now for 3 years and zero issues. Several others have done the same thing on LR3 and RRS and even FFRR -no problems.