Not that I know of. You're on your own. I did post some wiring instructions in the Primus thread. The wiring would be the same regardless of whether you have a Whoa Nellie, Pabst Can Crusher, or Primus. Just be sure you have the latest game code installed.
I did suggest it to Stern, but I was promptly ignored.
You could search ebay for a used Gottlieb B-12023 chime unit assembly. Just be sure to swap out the Gottlieb 24 volt coils for Stern 26-1200 (a.k.a. 090-5044-ND ) 50 volt coils and the appropriate sleeves.
There are numerous errors and omissions in the Whoa Nellie manual which I pointed out here:
https://pinside.com/pinball/forum/topic/stern-whoa-nellie-manual-errors-omissions-suggestions
I emailed Stern about it and again, I was promptly ignored.