Are we going to use http://10.134.48.37:8080/ for this?
I don't have any opinion on the different jenkins setups.
I did this today while working on bug 832465: http://10.134.48.37:8080/job/Balrog/. I think everything is working fine, but I'm not going to remove the existing jobs from https://jenkins.mozilla.org/job/Balrog/ until we have a few commits to verify.
Everything is still running fine. I turned off polling for the jenkins.mozilla.org project. I didn't bother deleting it in case we want the history at some point.