I'll reach out and will put a page on the site to help with the search. This has a few times helped to unearth obscure copies of mail order games and get people to be on the look out. Thanks for the heads up! :)
There's an old post on Lemon64 from the author in 2010. It sounds like they almost had a copy and were looking for someone to preserve. Looks like that must have fallen through.
Comments
A little further before my time than I usually delve
https://www.gamesthatwerent.com/gtw64/quest-for-truth/
Wishing you the best on this hunt!