29 roadster seat measurements

[Andy_SSPP]

Hi Fordbarn.
I have a 29 roadster that have a very bad seat and back inside. I have all the material for new seats both back and the actual seat.
But, I'm missing all the woods inside for the back to rest against.
I will order the correct wood parts but that will take time so I want to make some of some other woods for now before the vehicle registration.
Does anyone have some drawings for these wood parts?

Thanks in advance!
Andy