Sun Diagnostic Computer help needed

I did some closer looking at this machine. It appears that each year and model has its own 3.5 floppy disc. I have probably 30 - 40 different discs. I was hoping to find one that was a generic disc but no luck. Does anyone know if there is such a disc so I can use the exhaust analyser, scope and timing light? Has anyone ever used a tester like this?
Thanks Rod