Yep, no problem if you've got an Apple ROM CD Drive, that's how you install an OS. Customized boot/tools/driver floppy ought to get you up and running for SCSI testing, even without a supported optical drive.
Snag an external SCSI Zip drive at first opportunity. There are folks who hate them with a passion, I've been the opposite from before they shipped. I was seeded two enclosures for developing an alternate top cover. I had a couple of hiccups using them IRL, but there's nothing like 'em for sneakernet, especially across the peripherals support crevasse and climbing the OS/modern machine rock face, even cross platform.
No other notions offhand, you've got quite the interesting Catch-22 Degubbing session going there. :wacko:
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On second thought, maybe someone can chime in with a NetBoot based solution for testing?