I too own an SE/30 and a few years ago I ordered a replacement internal 1.4MB floppy drive. The seller shipped me a newer black-dust-door type drive by accident. They later shipped me a proper replacement (the style made for the SE/30) and I am currently still using that drive. But I never thought that the black-dust-door models would work without problem (injecting and ejecting in the same manner). So I appreciate hearing your story that it works. That's also why I was curious to see your photos so I could do the same in the future, if I ever need to swap out the internal drive again.