I have had my 1200 planter for 3 years now and am very happy with it. However I don’t like the monitoring system for it. I want to upgrade to a used 20/20 for monitoring. Would also like to yield monitor with it in my 9500 combine. Could someone tell me what all pieces I need to make this happen please. I want to buy it all used if possible so I need to make sure that I get all the pieces for it. Thanks.