I'm trying decide on which model to get. The XG3037 is $17,500 and the XR3135 is $19,500. What are the main difference of features between the two? I know the XR has a larger fuel tank but not seeing much else. The XG is closer to me but the XR is only 50 miles away. I've got 20 acres and it will be used for firewood duties and rotary cutting around my ponds and fence lines. Also have 400 acre family land that it will do food plots but nothing too large.