I wasn't talking about using SE/30 ROMs. I was considering replacing the entire logic board with an SE/30 board. IIRC, the SE/30 uses a ROM SIMM instead of socketed ROMs anyhow. What I was looking for was either the logic board from an SE FDHD or SE/30, or just the 3 ROM chips from an FDHD, as you can put those ROMs into an SE board.

And as far as the $, I shouldn't think that an old SCSI hard drive would be a hard find, surely someone has an old 80MB out of an LC pizzabox because they replaced the drive with something bigger.