> This MacII is a bigger and faster machine than the SE/30

Well, true and false.  Mac II is physically bigger than SE/30, but
it's slower (Mac II: 16MHz 68020, SE/30: 16MHz 68030).

If it were a Mac II** where ** is some non-null string, then it would
be both bigger and faster than SE/30.  Note, however, that IIfx won't
run NetBSD.  Also, I don't think you have told us whether or not you
have a PMMU chip installed in the II.  You need it to run NetBSD on
Mac II.

ken