Aftermarket in-dash Tach's

[DanoDMano]

I know that this topic has been beat to death, but I got to know.
I recently bought the white face decals and am very happy with them,
but the empty Tach hole hurts!!!!
What size and style aftermarket Tach's have you guys used and how well did they fit??

I want a white face and have been looking at the Autometers on E-bay, all of which look real nice.
I have a non-tach cluster and will have to cutout the hole where the tach goes to do it.

I was just hoping to tap into some braincells out there for advice before I start hacking!!

Thanks!!!!!!!!!