As with all of the external pieces and parts of this instrument, I will be making the arcades from quarter sawn oak. Now, this can be a rather expensive proposition - unless you are creative about the source of your lumber. After looking over red oak at Home Depot, I realized I could rip a plain, old $10 piece of oak lengthwise to get the arcade piece I need. Purchasing a quarter sawn piece of red oak at a specialty lumber shop would have cost me $20 or more. The photos below illustrate what plain sawn oak looks like when fronted for sale at Home Depot and what the quarter sawn side-effect looks like when turned 90 degrees.
Because I have good, reliable tools, I will be doing a lot more of this sort of thing. This will cut the cost of completing the instrument down a considerable amount, which is a very good thing.