My opinion. The trolling motor is first for another reason not yet mentioned. The way home. Problem arises and the Tm has to take you home, and it’s windy. That electronics won’t help a bit. I’ve been using a power drive Tm for over 15 years and I do everything with it, docks, troll, brushpiles. The biggest you can get. You’re only gonna buy it once. I bought the one I’m using now 7 or 8 years ago and no issues. 24volts If you can get them put away, or the biggest battery you can fit in the battery box if a 12 volt is your choice. I run a 70lb 24v and stay on the TM for 6 or 7 straight hours and still pulling when i get ready to go home. Heavy boat on a windy day, no issues. Think of it in the same way you think of home defense; you don’t need it til you need it.