At the moment i have a Helix 7 on the trolling motor and a 1198C Si at the dash. I just got a Helix 12gen2 Si. My question is. Do I sell the 1198 and keep the Helix 7 and network? Or do I sell the Helix 7 and keep the 1198 at the dash....? What would the going rate be if I sold the 1198?