If question posted by you on rdo mailing list in march 2016 still makes sense for you,
see
https://www.redhat.com/archives/rdo-list/2016-March/msg00171.html
You may take a look at
http://dbaxps.blogspot.ru/2016/07/tripleo-quickstart-vs-official-mitaka.html
Issues are fixed and explained in details . RDO Mitaka Stable deployed
to overcloud along with "Network Isolation" . In case "Network Isolation"
is not required then official instruction http://docs.openstack.org/developer/tripleo-docs/basic_deployment/basic_deployment_cli.html#get-image
should work as is.
Significant input for Mitaka overcloud deployment has been done here :-
https://review.openstack.org/#/c/329438/
Thank you.
Boris