Talisker Bay is a nice spot although I have never camped there. There is a farm there but you should be able to find a spot above the beach, which is black sand (olivine from the gabbro). Talisker Glen (Gleann Oraidh on the map) is unfenced rough Sheep grazing land.
If you study the map, it is unlikely that Talisker uses water from that burn, AFAIK they use a spring near the distillery in Carbost.
There is a good bunk house in Portnalong, in a former school and some smaller ones.