After my experiment with the vinyl covering, time to make some real parts. Because the whole dash front alignment starts with the right air vents, the glovebox is the first candidate.
I could not get the door aligned left to right side. I checked with an angle gauge (from RC model helicopter, my other hobby) , and indeed the angle between the top and bottom of the frame was different left to right. Some careful pressure and some patience and all was fine.
I used some 9mm mdf board modelled to shape with a Dremel tool. This is before the sanding to a smooth finish
The board and the vinyl covered with contact cement, ready for putting together.
It does have the right looks I dare say, although this is just a test set-up to dimension everything and test out the process before using final parts.
And one more test mounting in the car , the shut line between the panel and the vents is perfectly straight. A lot better than with the OEM panel for sure