Solaris 7 QEMU Network interfaces

Hey Guys,
I’m currently having a problem with Solaris 7.
My goal is to virtualize a Server that is originally running on Sparc hardware. A friend has already managed to install the existing backup on a qemu image, but we are failing because of the network interfaces. The real Server and his software needs 4 network interfaces, which are of course present in the original. But we can’t manage to emulate this in qemu. Do you have an idea how i can emulate 4 Network interfaces?