re: The Plan

That'll look fantastic. 

The only unmodified whites I've ever found are holly or aspen. I've tried oak for long narrow strips before but was frustrated by it's uncanny ability to break along the grain. Smaller scale I've had success with steel-gray dyed maple.
Hardest part was with the stuff I dyed myself. Took some time to figure out how to get 100% depth so the wood didn't go "native" after some sanding. 
I'd bet all your purchased dyed veneer is at 100% so you can skip that worry.