Its quite an easy process once you find all the screws, it's a shame you're not closer I would have offered to give you a hand!
Essentially:
Remove luggage hooks (from floor + side)
Remove side trim (cream near the top of the tailgate)
Remove trim that runs under the side windows and towards the tailgate
Remove rear seat bolster (slide it up and forwards towards you)
Disconnect the emergency fuel door release
Remove screws (per side):
2 x under floorboard
2 x into the side of the car
1 x into the rear of the car
1 x under rear seat bolster
Very carefully ease it out from underneath the plastic cap at the top of the rear seat.
You should now be able to gently 'roll' the side free. I open the floorboard a little to help 'release it'. If you have another pair of hands ask them to guide it over the rubber soundproofing near the rear seat.
I would also advise buying some replacement trim clips.
https://www.ebay.co.uk/itm/LAND-ROVE...53.m2749.l2649
Hope that helps! If you get stuck feel free to drop me a message. Rob