Update: I received the Zooz UZB stick. I followed the instructions outlined in:
Z-Wave Ghost Removal using a UZB-Stick - How To - 
Get Help - Hubitat
Thanks again to @danabw . The instructions are thorough, making the process pretty simple/straightforward (albeit somewhat time consuming).
I successfully removed 29 ghost nodes from my network. However, I am still experiencing reliability issues with my Z-wave network. I will start a new thread to address that.
Thank you all for the responses and suggestions.
