To gain that tach you would lose time/gas/neutral indicator.I've been looking too, and here's what I've found.
They're either cheap and look it, or expensive and only a few types to choose from with lots of chrome options. I only need one long enough to give my brain and body some reference to RPM, which now I don't really have. I don't know if I'm doing 6k or 8.
My favorite is not a standalone, but an entire swap.