Well I think I'm gonna go about it slightly differently.
Now that I have the original non AC dash sitting right next to the one from the factory ac one, I see where the vents would have to go. With them side by side it'll be super easy to measure off of the ac dash and transfer the measurements, and cut the face of the original dash to fit the vents where they're gonna need to be.
No worries about transferring VIN tags that way.....