I have the opportunity to purchase around 30 board ft of Walnut that has been sitting in a dry garage, stickered, for about 35 years. The boards range from 1" thick to 1.5" thick. I live in relatively humid Nebraska. Is it possible the wood is too dry? Is it useable for wood boxes and book shelves? If I buy it, what is the chance it will be unusable? The grain looks nice, and the sap wood is minimal, so it looks like nice wood from that standpoint. What do you think?