My question could probably be easily resolved with the 4.0/5.4 "Macintosh System Tools 1.0" disk. The 4.1/5.5 "Macintosh System Tools 2.0.1" disk includes an installer script for the II. Unfortunately, I do not have a copy of the 4.0/5.4 System Tools disk -- I only have the 4.0/5.4 "Macintosh Utilities 1.0" disk.
Anyhow, if the 4.0/5.4 System Tools disk (which I do not have) has an installer script for the II, that would answer my question. But my correspondent seems to know what he is doing, so I tend to think it's possible that 4.0/5.4 won't boot the II. I think it might have something to do with the differences in how the ROM is used between the SE (and earlier machines) and the II.
Anyhow, if the 4.0/5.4 System Tools disk (which I do not have) has an installer script for the II, that would answer my question. But my correspondent seems to know what he is doing, so I tend to think it's possible that 4.0/5.4 won't boot the II. I think it might have something to do with the differences in how the ROM is used between the SE (and earlier machines) and the II.