Do you have by any chance any of those type of plugs - i.e. new for sale or second hand from depleted and about to be ditched UPS packs or from inside of the broken UPS? ~ $5 I am in Auckland.
APC ones are non-standard Anderson plugs.
Checked today - they are NOT avaialble in those stores: Ideal Electric, JA Russel, Corys, Jaycar, RS-Online, Surplustronics.
Blue: APC Surt 2000 (48V)
White: APC Surt 5000 (192V)
MGE Evolution 3000 (72V) - either double one or the one with 5 poles