Hi Akerosid.
The B747-412 landing on 07R is actually TF-AMI, owned by Air Atlanta Icelandic, ACMI wet lease to Saudi Arabian.
There are only 2 ways to get to the Sha Lo Wan ferry pier.
1. Catch the Tai O ferry from the Tung Chung Development Pier, near the bridge from Tung Chung to Chek Lap Kok.
or,
2. I prefer to walk via the the Yat Tung estate complex following the path via San Tau to Sha Lo Wan Chung Hau. Just before you get to SLWCH take the path to the right (signpost for the ferry) for about 500M and bob's your uncle. There are a couple of other viewing points along this route too. From the Tung Chung MTR this really nice hike would only take 1 hour max through some quaint old HKG villages.
Cheers JO.