These instruments are available in a number of different materials. Rosette is flamed koa and boxwood. Fingerboards are ebony or Brazilian rosewood. Inlay is brass ringed abalone or standard dot inlay. The adjustable truss rod is used in all steel strings.
Wooden binding is also standard.
Oval sound holes are available but will affect the rosette design. Radial bracing patterns are offered for the back as well as impedance matching bridge designs. This requires in-depth discussion, but for some it is a great solution to their desired goals. This top design is not available anywhere else.