The direct replacement for what you had with Omni would be buying a SF6000 with an SF3 ready activation on it already. They're all over right now and pretty cheap. 

Then you're just buying $650 or whatever length of time you want for the SF3 signal which is as good or better than the Omni you had. 


That tractor should have the 4600 monitor in the arm rest? Large screen, not the little one. Needs the v2 server update if it's not had it done already. Then you can run the liquid bar and just about anything else through that.