You can call Joe DiMaio (510) 828-3168. he is in Oakland and is a master woodsmith who has done some work for me in the past and is currently re-sawing some teak
and white maple for my new sole.
He is honest and fair and I have always been happy with the results.
You are welcome to tell him that you got his name from Steve Sanzone if he asks.
While I would use teak
or mahogany based on $$, you could also vacuum bag (or use foam core) balsa and resin for a core
which is skinned in whatever wood you prefer. that would be a lot lighter and stronger and still aesthetically pleasing