Im thinking about purchasing side steps and mud flaps, how much do you reckon it will cost to get it fitted by a dealer and also to purchase the items?

Fraser  2012 RRS Autobiography, Fuji White all the toys
2011 Audi RS5

If you want OEM, Duckworths will probably be your best bt for the items (Front Mudflaps £45+VAT, Rear Mudflaps £45+VAT, Side Steps £385+VAT ) delivered free.
I'd then try to get them fitted for gratis by your dealer, or maybe get them to match Duckworths prices and fit for free

If non OEM, you can get a set of flaps for £50 and steps for £185  ON THE WAY: BMW F21 M140i
MERCEDES GL350 - Metallic Navy Blue w/Grey interior

GOING: BMW F31 335D MSport+ xDrive Touring
GONE: Land Rover Discovery 4 HSE - Stornaway Grey w/Black Interior (wish we'd kept it )
GONE: BMW F10 520D MSport - Carbon Black
GONE:MY12 RRS SDV6 HSE Sumatra/Ivory/Grand Black Privacy glass

I got my flaps from my dealer who supplied my car with a 10% discount they fitted them for free i got my side steps off flea-bay for £185 exactly same as genuine L/R, and they were also fitted by my dealer for free, all before delivery

Hey mate, get everything your talking about from ebay and fit them yourself, steps and flaps all come with simple to follow instructions, also look on you tube there is videos for both. Save yourself a fortune than taking it to a dealer  2006 TDV6 HSE,
Bonatti Grey,
20" Stormers,
Side Steps,
Limo Tint Windows,
Supercharger Grill & Vents,
Tail Pipe Covers.

"Keep The Faith"

Would agree with fitting DIY - just fitted side steps from ebay to ours yesterday and other than the screws at the rear of the side trim being fiddly, it was not complicated to fit. Took just over 3 hours to fit both sides.

There is a good fitting guide video available on youtube from powerfullUK I think? Just search on range rover sport side step fitting - I watched that once then just got stuck into it.

You only need a 10mm spanner, 10mm & 13mm sockets, an offset screwdriver, a flat head screwdriver or cut spoon for removing trim clips and some fairy liquid. Nothing complicated at all.