tried to find it on the new Alla, but thing is all rewamped so not much old data available anymore.
I know it's not a proof of classic, but check out PEG server. There the merchant has these spells.
It's not like its a very big thing, but I'll try dwelve a bit into it if i can find any resources of it.
edit:
On this page it also states "Qeynos + research" for Cornucopia" wich is linked from P1999's Library section
http://www.thesilversandbox.net/p1999/main.php
and here:
http://eqbeastiary.allakhazam.com/search.shtml?id=2828
This merchant always was kinda weired, cause he has this strange selection of spells, but I am still very convinced this is like he always was right from the beginning