I have seen last years 898 on sale at Shut up and Fish for 800-900 which is a steal. You also could consider used electronics from BBC members. A lot of those bass guys swap electronics annually and sell units with very little use. I would start with one unit on a RAM mount that swivels and save for another later. I think the 899 or 898 at console and a 859 up front. If you could find a 798HD model from last year it would Ethernet to these units. Gander had these units for $699 earlier this year and two of these would do what you need or one with a 859hd.