1995 Prism tach cluster

[GL~]

I really want a tach cluster for the car. The wife says it is a must.
Not I found a tach included gauge cluster for a 1995 Corolla I was thinking of buying but since the gauges are arranged in a different order, and my car has no tach, what do I need to do to install it properly? Is there an unused clip or wire inside the dash that works with the tach or should I count on having to wire it from scratch which would suck.

Also, the cluster I found is $100...seems a little steep.