"They'll be too remote for a single network. Depending on how the
project develops once it's launched, there could be devices all over
the country. I dont think you can connect on a single network that
far can you and therefore be able to access the NICs directly? I think
it will require internet if we're to keep it low cost?"
It is possible with a VPN through the internets. However, I'm no
network guy, so I can't give you the details on what it would take.
mike