I run a 998 bird. But if I fished a boat like yours and wanted two units in the future I think I would have to consider the 959 DI combo for bow, then later add 999 or 1199 to console. On the 959 you would have 2d and DI and with the built in GPS it would be right close to your transducer. And you can network them and share info.Then on console unit it comes with internal GPS but you can add external antenna close to transducer on transom. On Lowrance if you want more than 2d then you have to consider the size of the transducer cause it is huge. Their HDS units ( which they are phasing out ) require a separate box to get Side and Down. New touch units have it built in. If you just wanted 2d right now you could get the touch 7 and just install 2d transducer. Later put a touch9 on console and network together.