Help measurements 1928-29 coupe

Hello

I wonder if you can help me with some measurements, I have a 28 sport coupe I'm building to a Standard Coupe.
I bought a pretty ruff roof and have some problems, its missing the cutters in the top where the wood should be. I have done this drawing, hope you understand my problems. I need to know the distance from the sunvisor to the edge in the back of the hole in roof; I also need to know the distance in the roof hole between the A-post and B-post. I´m happy for any information.






Lars from cold Sweden

 

I have ´30-31 Coupe and I can take those measurments later today if needed? I´m not sure are the measurments same in 30 Coupe??

 

Great!

I'm happy for any information, I don't know if it's the same dimensions. If you can take some picks of the roof hole it would be great.

Lars