If I was going to tweak a wood cab design, it would be to make sure the driver has room to get around the steering wheel, because some of the modern rebuilds you can't barely get around the steering wheel, and I know originally they always could especially if you wanted to steer backing up and sometimes a person would wrap their thumbs around the steering wheel and find themselves out on the runningboards if they weren't paying attention about the front wheels going into ruts or holes (pnuematic tires made a BIG difference when first optional in 1930). One guy told me he went to work at the plant as a kid as night watchman and spray painted tractors between his rounds, and that he needed an axe handle to steer them because he was just a skinny kid. And if you're wondering, they did mix their own paint, with a little blue/kind of a spruce/hunter green, how much thinner literally was determined by how soon it had to be dry for delivery! Any lettering was custom done by a professional not an employee.
BUT most Linn employees I interviewed agreed they all preferred the wood cabs (built by a swedish carpenter, George Fisher, who literally was the only employee the length of tractor production by the original concern (1917-1948) even though steel cabs were mostly used after 1940. Salesmen and customers complained the wood cabs made them look "old fashion" and they wanted all the bells and whistles, but mechanics hated working under the dash of a metal cab, and drivers hated roasting in the metal cab (one reason doors were often removed).
Consultant on all things Linn tractor/Trailer/Van made in Morris or Oneonta, NY, and can email data, analyze photos, parts recognition etc. And general fan of old snowplow and logging equipment.