You buy the module from a AG distributor after providing your dongle number. The distributor does not need to be the same you originally purchased from. The distributor will activate through Germany for you. This can take a short time or a long time, it depends on Ag Germany. The module is then...
I'll let you know if I run across any. I sell milling machines as well and frequently I speak to people looking to unload equipment and replace with newer equipment
Why are you limiting your options to Roland? There is an abundance of options on the market. Did you already buy a CAM software? Buying 5 used machines regardless of the brand sounds like a potential nightmare. It may be better to buy new and use the fact you are buy 5 as leverage for a...