You can hire me to do a quick walk-through to see if a timber harvest is feasible, but no. First of all, I have to mark and mearsure the trees to be sold according to your goals for the property. Then, it is only worth what a willing buyer is ready to write you a check for. Markets are variable and offers vary widely depending on how bad the buyer is in need of your particular trees. There are other variables as well, such as difficulty of the harvesting operation, road issues, time of year, distance to the mill or yard. The amount that a mill will pay depends on the deal they have with the buyer of the boards they make. Supply/demand. Up and down.
One thing I can tell you for sure is that good quality logs are always in demand. Thats why you need need a professional to help grow good logs.