My 86 RX-7 needs a new sunroof, but the problem is that the cheapest people around only have one for the MX-3, they think it would work but if they open the packaging I have to buy it, so my question is this, does anyone know the size of the opening in the roof for the MX-3? Please hurry, I've only got til 3:00 PM Pacific to give them my answer.