So you'd be missing

- PSU

- Nubus cards - video card at the least

- Drive tray that mounts onto the top of the white plastic risers

- floppy and hard drive, and brackets for these (which aren't essential - you could make your own perhaps with small risers/screws)

- floppy drive and hard disk cables (same as in pretty much any other 68K Mac)

... why can't you compare to your Mac II?

JB