I have an untouched plain dashpanel on my speedboat, my engine is a Evinrude BE40ELCR 1984 (lovely original engine)just for period look and to make it better looking, what gauges/dials can be fitted considering the engine? the gas tank is plastic OMC with gauge on top? I have purchased new R.P.M. gauge and new Pitot type Speedo,any ideas please, thanks for now. JBD.