NZ and SKN marked Brens

I've just been going through some serial numbers and I found myself asking how many SKN guns were converted and how many Brens New Zealand were sent. I know of SKN 5532 and NZ6774 (NZA1451 is the last with the A I know of).

Also on the subject of numbers, does anyone know why the Indians scrubbed the markings off their DP MkIIIs and renumberd them with a prefix number of 7? I know of numbers ranging from 7000 to 736x. And does anyone have or know of any SAF Ishapore serial numberd Brens in the format A00123, I know of only one but there must be hundreds out there?

ATB, Chris.