I have a budget of 500.00- 600.00 to spend...I'm tired of looking over my shoulder to look at my speed...my eagle 480 fish eye elite is on my dash have an old style sonar only on trolling motor...want something for the trolling motor with gps, sonar, color...and ability to save wps....need your help please...I know Lowrance has a rebate going on please,,little steering in the right direction thanks Liftbite

