Hey looked on internet for something. Found this website. Dont know price. Didnt do any research maybe it will help you out. http://www.woodbridgechips.com/
I have a friend in Napa who drives to certain vineyards that have piles of broken barrels sitting around. He just loads his trunk with staves. You may try to email or call a few vineyards. Perhaps they'll ship out some staves if you're willing to pay for shipping? I'm trying to find a Hudson Valley vineyard with broken barrels, but not having any luck.