used switch --relocate oldURL newURL to point local copy to new URL for svn repo.
example:
switch --relocate https://revision.tapor.uvic.ca/svn/reponame, https://revision.hcmc.uvic.ca/svn/reponame
updated my local files, then used the exist admin client to upload 4 modified data files to the database.
Root of svn tree is at https://revision.hcmc.uvic.ca/svn/hcmc/