Trim Gauge 2000 Johnson 90hp Model J90VLSIF

[magnet]

There are three holes in the console of a 2000 Key Largo 180cc that I purchased recently and I think covering those with a trim gauge is probably the most useful option. Any thoughts on how involved the wiring would be?
Thanks,
Magnet

 

[johnnygjr]

What other gauges are onboard, A tach is mandatory,fuel gauge is nice,temp. gauge would be my third option

 

[magnet]

Fuel, Low Oil, No Oil, Tach, Temp.