Some scottish sites you might like if you enjoy absolute peace and quiet as we do.
Achindarroch Campsite, Duror (beautiful, clean, small, forest walks, sandy beach 15mins away, pub 10 mins)
Applecross Campsite, Applecross, over highest road in scotland, so you would have to go the longer way round via Shieldaig (but do the high road without the caravan as its amazing) quiet site, nice pub 5 mins and sandy beach.
Camusdarach, Arisaig, beautiful white sandy beaches, lovely site, pitch 8 best.
Faichemard Campsite, Invergarry (not Faichem - next door) beautiful rugged site, Quiet - no children allowed
Badralloch Campsite, Nr Ullapool - you can't get more remote than this. Beautiful quiet site.
Hope this helps. We tour Scotland looking for these sort of sites (we also live in Scotland). We are currently looking for another remote site in scotland for tis Christmas, last year had Christmas at Badralloch, only ones there. Great