If you just want the quietness, but a little better comfort and infrastructure, you could try some of the estates out in the wild. Mount Pavilia in clear water bay for example. Park Mediterranean in Sai Kung. A few along castle peak road on the stretch between Tsuen wan and tuen Mun. In the outskirts of Tai Po or up the hill between Sha tin and Tai Po.
Just wondering if the Park Mediterranean has the same door design as The Mediterranean in Sai Kung? If so, get used to gunshots. Not so bad if you've an apartment on a long-side of the towers but at the end you're walled-in with apartments either side, doors a few feet away, then it's slam-slam heaven in our experience.