Would love to accomidate your wish, however those pesky lawers would probably fire me, even if I knew where to get those ROMs.
It is not uncommon to assign more than one Ethernet interface to a Virtual Machine. You can assign an emulated device that support PXE through the hypervisor that would allow you to get your OS up and running. Then when it is up and running you could, via a script or something disable the emulated device so that only your VF was available for use.
- Patrick