If someone steals or destroys your property, you are entitled to, at a minimum, the then-current fair market value of the property. So, if the value of the wood (for lumber; for firewood; etc.) is, say, $10,000, that is what you are entitled to. Determine the value of that much wood (you can probably find it on the internet; you can also calling lumberyards, sawmills, etc.) and that's the amount you should receive. If the neighbor will not voluntarily pay that amount, you'd need to sue him to recover it, so at some point, you may elect to either take what he offers or see if you can't work out some mutually agreeable price. Note that what he claims he received--or even what he actually did get for  the wood--is irrelevant; the fact that he may have made a bad deal does not diminish your rights.