[fedora-virt] migrating to FE V12

I would like to install FE V12 and try out the integrated to the virt manager changes. There are several download options, however, I do not see a complete DVD install disk. If I just download the boot.iso and install does than imply I will then need to go back and add packages one by one to re-establish where my DVD installed FE V11 is today? Is there any difference between the the latest Rawhide and FE V12 alpha at this point? Finally, can I migrate to FE 12 or is this a complete reinstall meaning I need to preserve my current VMs and other data on my hard drive which only has one partition? I plan to fix this scenario later but for now OS and data is on one disk.