Are you referring to leaving the stock fairing on an IS, and removing the digital gauges and replace with dials?
There was a recent post with a IS fairing and dial gauges. I looked, but couldn't find it. Maybe someone else has it. There is some out there where they added the IS fairing to their std/tourer.
Speedo & Tach are analog, only the fuel gauge is digital. Not sure what he wants to do?