Just finished up and tested for 60 miles out on the lake today everything worked perfectly.
My gauges were working fine, but most of the time me and my wife just go out exploring on our home town lake. We like to go to the very top of the arms, and we didn't have a depth finder. I wanted something more than a simple depth gauge.
I decided to go with a garmin echomaps chartplotter for the high relief depth shading option. I used a fox marine mefi-3 gateway with the oil pressure add on to convert the engine data to nmea 2000 network, and a garmin gfl 10 to convert the fuel sender to nmea 2000. I am waiting on a oil temp sender from across oceans systems then I'll add trans temp to the backbone.
The install was really straight forward as all the components are pretty much plug and play. Except the gateway had 8 feet of cord so took that apart and cut them down to 1.5 feet, and the gfl 10 needs to be wired on to the fule sender. the dash bezel was heavily modified to remove the round gauges and mount the garmin.
All in all it took a week of working after work and 1 full Saturday. I think it turned out pretty nice and I'm very happy with the results
I have engine tach, oil pressure, water temp, gps speed, volts, fuel level, and soon trans temp. Not to mention all the things the chartplotter has like the maps, trip data, sonar and much more that I don't use.
You can check out the photos of the build here
https://photos.app.goo.gl/hMnMggtgixJQWtKb7