As far as slight changes to design:
I was thinking
#1 Slightly expanding the bottom row to allow space for 6.25 spacebar without having a gap between keys. (The benefit of getting the top plate milled out is that I can modify it)
#2 Getting rid of the usb hub
#3 Maybe make some more room for a battery, in case I decide I want to use Hasus BT controller, rather than the standard USB.
#4 Any other drilling needed for full compatibility with topre-mx sliders and cherry mx keycaps
As far wood goes, Either Macacauba, or Canarywood is what I'm going for, going to get it stabilized as nubbs suggested.
I'll start getting a few quotes from some shops once I have a CAD done with the final design and I have enough money to throw at people.
The two empty spaces are going to be decreased in size slightly, I don't think it will ruin the look of the board versus the original, what do you guys think? I'm still going to get the HHKB logo engraved on the case the same way it is on the original, I like mah tramp stamp.
On the wood vs metal plate thought, I'm leaning wood because I'm thinking a metal plate might produce a harsher sound that I would want. But a modified plastic plate isn't off the table just yet, I just prefer the thought of a wooden one, for a silly reason of preferring a more uniform and single material board. :e