What are the options? I'll be needing: Speedometer, Tachometer, Temperature, Oil Pressure...

What gauges would work with our sending units? The simpler the better... meaning no computers/modules in-line.

It's for a w140. I can get an older cluster from a w124... I can do with just the mechanisms... not really going to use the faces. But if there are more readily available gauges with their own sensors/sending units that would be better.

If you were building a car from scratch... how would you go about the gauges?

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85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project