I have made it to the forums
I can help with the hardware aspect of this but not sure about the networking.
Take a look at this custom firmware for routers it supports vpn and vlan on the cheep.
http://www.dd-wrt.com/wiki/index.php/Configuration_HOWTOs
I think you're looking for this thread: http://forum.bitcoin.org/index.php?topic=31761.0
Can't post outside of newbies