lol
Aside from the black kit photo your 'SAS' loadout is just the standard British army uniform, which ironically is what the Regt would usually wear (different stable belt and beret obviously) There isn't really a SAS loadout but if you wish to achieve an SF loadout, you could go with standard kit as you have and then modified webbing. SF would mix and match their kit to suit the theatre of work they are in. The same goes for the weapon. Choice an M16 / M4 or something, as I've heard the Regt are fond of these haha.
I've been told this is a photo of SF / SAS