I am looking to replace my gauges and would like some insight before I get started. I have the non-rallye dash in a 70 challenger. Has anyone installed VDO Vison series gauges? They are 2 1/16 inch diameter verses the 2 5/8 Autometers that others seem to be using. Will the VDO's be too small? I am hoping to do as little cutting to the dash as possible.