I am happy to report that I took the advice early on in the thread to get OMV4 while it is still available.
My expectations for OMV have been lowered through this experience and that is a good thing. To me, I will simply think of OMV as a good general purpose Linux server implementation with a decent webGUI and some good essentials built in. I'll install, configure and manage the "extras" myself.
Last step is to decommission the trusty Stone Burner installation and re-purpose the drives.