Instrument cluster moc-up
Fish,
since its a simple reflection based image focus should not be a problem. As far as where the image will endup is one of the reasons I had to pull the dash. I have the location of the image mapped out on the top of the dash on masking tape. When I put the dash back in I will be able to see where it will be seen.
As it looks right now it might be a little low on the windshield. Since I have it set right at the back of the dash pad moving it up will require cutting into the pad. This is why mockups are so important.
Andrew