I purchased a new Tracker 195 TXW that came with a Minn Kota edge TM and a Lowrance HOOK Reveal 5. Eventually I want to add a fishfinder/chartplotter to the bow and replace the console unit and replace the trolling motor. I am very interested in the Minn Kota Ulterra TM with spot lock which makes the Humminbird HELIX look pretty attractive. Am I on the right track with my setup? Thinking about a Helix 7 Mega SI G4n at the console and a Helix 9 DI G4n on the bow. Will the Helix networked share Navionics charts? If not do most have charts on the bow unit and the console? I will have to swap the transducer mount from the Lowrance to the Humminbird so does anyone know if the holes will line up the same? I am open to other brands too. Thanks for your help.