I have quite a few kits, including some older ones, but don’t see one with that name in my files…
By chance is this the one you are looking for?.. It’s a really nice kit that Phil_Flood made…
https://forum.singularsound.com/t/stax-piano-harmonica/11503
Phil did a really nice version of Piano Man about a year and a half ago, here’s the link for the song…
https://forum.singularsound.com/t/piano-man-opb-keyboards-harmonica-2018-02-22-billy-joel/9283