Best Humminbird Match for Minn Kota Terrova

[bassdaddy]

My Terrova US2 w/I-pilot came with an integrated transducer that I have yet to use because I continued using my Lowrance 5X DSI unit. There is not an adapter available for the 5X DSI so I've been using an external transducer. I'd like to get away from that situation, so my question is...which moderately priced (less than a grand) Humminbird finder would be the most compatible with my Terrova? I'm just a recreational fisherman so I don't feel like I need all the bells and whistles that come with the upper-end models. I just need the basic info that my current Lowrance gives me.