WinPE is a very compatible enviroment and looks like this is the way I will have to go for on desk restore. On the otherhand Realtek was kind enough to provide the .dos driver that I needed for PXE. While I set it all up, I found that using the old netbootdisk is still working well, and that the GC is working for the win7 x64 machines.
By the way. In case anyone needs it, I can provide you with the .dos for the RTL8112L On board LAN (ASUS Motherboard) Just send me a tell as I do not know if Symantec would like for me to post it here.