I only saw one more or less affordable 73GB new IBM drive here for EUR 63.- plus costs for an adapter.

Who would need 73 GB for a 68k Mac? Maybe the Amiga SCSI-1 to CF are the way to go rather.

powerpup, I hope I didnt hurt anybodies feelings, I´m by far no expert with SCSI HBA.

The few experts I knew, sadly moved to cemetary many years ago. The SCA would be trial and error for me.