what sort of range do you expect without the land line internet connection ?? two miles or ??
It doesn't need an internet connection, only a local network connection. A high powered antenna goes pretty far. You can also create a cellular network - I think that is what ww is using. For me its really only getting it going, clicking start remotely, since once it's done the headland, and run out of land, it should Dubins back to the start and stop/park. If it faults, errors etc, Dubins back home and park.
WW, what are you using for TeamViewer to connect sprayer to seeder?