Hey,
Finally there are weekly Fedora 19 based oVirt Engine Appliance builds.
They can be found in oVirt’s jenkins instance:
http://jenkins.ovirt.org/view/All/job/ovirt-appliance_master_merged/
An ova file is created, this can either be used with Engine or you can extract it
(it's a compressed tarball) and use it with four favorite virtualization solution.
- fabian