Doc, IMO, hickory and boo are not a good combo. Others will probably disagree. Hickory is very strong in tension but not so in compression. A selfbow of hickory would be more practical im my opinion.
Pine Hollow sells quality hickory staves. Another option is go to a local specialty lumber company. You can buy enough hickory for 4 or 5 bows for what you will pay for a stave from a vender.