We have a trade in GFX-750 w/ Nav 900 RTK High Accuracy and Autopilot License. This unit is in perfect working condition and includes power cables, antenna cable, ram mount and Nav-900 tractor mount. It has the high accuracy license to work with Waas, Omnistar, Rangepoint RTK, Centerpoint RTX or RTK and would be perfect to connect to a tractor with a valve in it or to an EZ Pilot for High Performance Autopilot Motor Drive. If you'd like a 900Mhz or 450Mhz Radio/Cellular RTK modem one can be added for an additional price. Retail Price is $15,100 and this does come with a 6 month warranty. Please message or call with questions for help with any other configurations.