Range Rover Sport - Which one? SC, HST, HSE?

[aero93]

So looking to get a Range sport - Budget between £14,000 - £17,000.. Any model I should be aiming for? SC, HST or HSE? or avoiding? I read that I should avoid the 2.7 and any reason not to get a 4.4 SC? Why do these seem cheaper than HSE for example. I only do about 8,000 miles a year so not too worried about a extra MPG cost of larger engine.