Super fancy English Walnut , Koa, Macassar that is highly figured. Snakewood,. Although unstable,
Super fancy Claro Walnut. If you look at a thread called Bills, Eaglewing you can see some of that. You said no expense spared. These woods are as nice as they can get. Also there is some really wild crazy quilt maple if you like light wood.
The most gorgeous wood I have ever used though is some really high quality chocolate burl myrtle wood. If you go to my site there is a bow on there with it . That wood is to die for and about that hard to get.
Macassar and Highly fiddlebacked koa with koa limb veneers would be my choice though. Expect to pay a bunch/ This is one I built with koa and spalted maple
God Bless you , Steve