Of course the wood case's plates will be different, they're going to be made of wood!
I kinda hoped I could just copy pasta the metal case design and I more than likely could. However tooling could be cheaper if I designed it for larger radiuses on the interior "corners" and I would feel more comfortable with a large bolt and further from the edges (especially since I'm so close to end grain with 6 of the 10 holes that hold the top on
I also really wanted plates to be interchangeable between the metal and wood, and I'll try to but I can't make promises. BTW maple threaded like a champ. Oak wasn't the best, but it wasn't bad either. Walnut and cherry are softer than both of those so it also shouldn't be a problem.