Just wondering whether there's anyone out there like me who keeps boxes of old power supplies etc., that might be able to help me out?

I'm after a power supply that has a very specific "snap in" wall pin arrangement.  It came with a rather expensive dive light that I'm now looking to sell, however, because the "snap in" adapter set didn't include an AUS/NZ style plug I've been using the US plug with the blades bent out.  This works, but TradeMe won't allow me to sell it this way - it must have an official NZ plug.

I've done a fair amount of searching on-line, and finally found the identical power supply on EBay in the US, complete with AUS/NZ adapter, but the freight is quite prohibitive.

I've also looked at replacing the whole charger, but the plugs at the other end are also rather unusual, and while I "think" I've found what I need, once again, the freight to get the parts is way more than the cost of the parts themselves, and it's almost cheaper to buy the whole adapter.

Before I take a punt and spend a chunk of money on a charger that may or may not enable me to sell the light, I thought I'd reach out on the off-chance.  I'm more than willing to pay.