Go 200 engine, place an SI transducer on the dash, stay with the Helix 7, go DI on the bow and stay Helix 7 with GPS on the dash. These are better than LCR units we had years ago. Get the Grab post, go Ultrex 80 and get no power poles. That is unless you want one for beaching and shallow water. You also could get the single axle if you want, though that’s preference. From the outside you have everything any Eyra has and from the inside your in for less.