Bird of Paradise

In 1994 I purchased a Bird of Paradise 100th Anniversary Gold and Silver proof set. There was supposedly only 1000 of these sets made and 500 were sold in the US. I cannot find any information on these sets. It has a Silver 5 Kina, a Silver 25 Kina and a Gold 50 Kina coin, the 25 Kina is laser engraved with colors. All are in proof condition in plastic cases and never touched. They were sold out a company out of Minnesota. Does anyone have any information on these? What might their value be and is anyone interested in them?

As you can see on the obverse, it says "Papua New Guinea", so it wasn't too hard to find some information:





You can see the catalogue values beneath the pictures. The pictures are from the 2017 edition.
Of course a catalogue value isn't the same as market value. Here you can see what they ask for the 25 Kina coin on eBay (and there you can also see the picture in full colour). Remember, asking a price at eBay is not the same as getting that price.

https://www.ebay.com/i/182771683954?rt=nc