Considering the resonant quality of the various woods (some are tonewoods), I am very much curious as to how these all sound.
Some of these would be awesome with blank scooped keys. Nothing but wood - no etching to break the look of the grain.
How about a Rosewood board, but with Ebony keys (either this type or truly black Gabon Ebony - or a mixture grouped by location/function)?
Or Rosewood board with something they don't offer like chocolate brown true Lignum Vitae heartwood for the keys. Neither would need a finish as there is so much oil in them - just polish them to a glossy sheen, and the Lignum being the densest, heaviest wood in the world would last a VERY long time.
Hmmmm - time to get that table saw and router, me thinks.