If you've got a mac with a pci-e slot, you can get a pci-e card off ebay and an appropriate stack of adapters to go from a modern wide cable to whatever you need? If you don't have a mac with a pci-e slot, borrow a desktop pc with a slot and go from there? If you borrow an old enough desktop with PCI you might be able to get an older scsi controller and skip a few chains in the cable adapter path.

Or using the bluescsi initiator mode to make a disk image seems not too badly priced either.