I have bad experience with compiling qemu from git. After this I was have to spent too much time to make it work with libvirt, seabios and so. I cannot shutdown our production machine for several days .... but I can try it if it will be pre-compiled.
I am using it for a data analysis of massive data. I think there are no way to transfer 200GB data and setup several programs to check it.
I can perform testes and collect data for it.