Remove revision range from repository

Hello,

I need to permanently remove a range of revisions from a repository, which are
not the latest.

None of the working copies have such a revision checked out (I guess, that
might be a show-stopper).

I know, I can do:

# svnadmin dump /original/repo -r0:1234 > /path/to/dumpfile_1.dmp
# svnadmin dump /original/repo -r2345:HEAD --incremental > /path/to/dumpfile_2.dmp
# svnadmin create /new/repo
# svnadmin load /new/repo < /path/to/dumpfile_1.dmp
# svnadmin load /new/repo < /path/to/dumpfile_2.dmp

But that would renumber the revisions of the second load command.

Is there any way to insert empty revisions, so that the revision numbers would
be stable?

BTW: I guess, I'd need to set the uuid to the uuid of the old repository if I
     don'w want existing working copies to get into trouble?

-- 
Josef Wolf
jw_at_raven.inka.de