The onboard floppy chip on the CPZ-186 still requires a personality board to work, they offered an interface to either 5.25" or 8" floppy disk, (picture of 8" personality board is attached)
There was also a hard disk personality board that connected to the OMTI 5xxx series SASI to MFM bridge board for hard disk, this was their recommended hard disk option, but the CPZ-186 played well in other hard disk controllers that resided in the bus (as long as you had the software). I'll also attach a photo of the needed personality board for interfacing with a serial console.
The disk from the ebay listing that was sold is a boot disk for TurboDOS 1.43 release for ICM hardware. It's incomplete though, there would be at least 2 other floppies that go with it to make up the full distribution. That particular disk is a very late release for ICM, after Cubix/LF-Technologies/Industrial Micro Systems bought them out and for a short time supported the hardware line. The main reason for the buyout was to shut them down.
If you have the hardware, I can help with the rest of the process to bring the system up.