I have some experience building boxes and have been thinking about building a humidor. If I do this, I'll build a box out of hardwood and line it with Spanish Cedar. The little bit of research that I've done tells me that it is critical to get Spanish Cedar that won't ultimately bleed oils; acetone, etc will not correct the situation and the only answer if this happens, is to replace the wood. That said, does anyone have a source for good quality Spanish Cedar?