Welcome....
With the greatest of respect, are you sure you are equipped for an L322??
They are a minefield of electrical system that have inherited a multitude of 'Diva' issues....
Get yourself a good, full fat diagnostic device like a BBS Faultmate Extreme or the New Nanocom, download the rave manuals
www.landroverresource.com and get yourself a cup of tea and read it through...the L322 is a ridiculously complicated beast.
Deep pockets are required for any Range Rover owner, deeper still for a L322, as a comparison, a set of 4 suspension airbags for a P38 will set you back around £250-320 for OEM, a single front airbag for the L322 is in excess of £300...!!
Never buy one with faults, no matter what the seller says,
'Easy fix that mate, just gotta do X, Y and Z and i'tll be right as rain'
If it was that easy, why didn't he/she fix it before selling it.....
Buy with your head and not your heart, there are plenty around so take your time, Range Rover ownership is a lifestyle, it will breakdown, it will be expensive to repair, run and maintain....it will test your paitience, and it will test your relationship with the other half (if you are in that situation).
But you will never, ever want to be without one...ever again.