1969 Rallye Dash for parts

I have a Rallye dash in my 1970 Duster that was cut out around the radio. I want to cut a piece from a scrap Rallye dash and repair mine then cover any imperfections with a black overlay. I say mine may be a 1969 Dash because it has the hole for the lighter near the radio. If I can find one cheap enough it beats paying $700 or whatever they are now. Thanks.