I may have have been lucky then when I got this ex-NZ L2A3 several years ago, one of the last 'old specs' from DWSUK. Finish doesn't seem too bad, probably about 70-80% of the crinkle paint left, original Sterling mag. He has several 'new specs' on his website, but doesn't specify a manufacturer. Might be worth checking if he has any Faz examples?
Unlikely Charlie as he does list the serial numbers. All "KR" or "S" prefixes..... So all Sterling made.