There are too many variables that may/will make your job unrealistic. A lot of forethought needs to go into your planning process. Let's look at a few of the variables to be considered. Will you be replacing your headliner? How can you remove the glass without scratching the paint around the window or breaking the glass? How will you reinstall the glass and get a waterproof fit? How will you keep from scratching your new wood grained dash? What do you think was the assembly order of your 1940? Why must your glass be remove to wood grain the dash? What is the logic for removing your glass instead of removing just your dash?
Here is a link to some of my posts on windshield glass replacement.
41-48 Windshield GlassGood luck, Mike
P.S. Glad to have you call me if you want to discuss your project. 989-832-7634. Leave a message and I will call you back.