I would say at least $350 for site prep and planting on an 8 year old clear cut, maybe up to $400. It cost $250 for a recent cut over if you include site prep burning and quality seedlings.
I would not offer more than $800 an acre considering they let it grow up in 8 year old cut over. If it's left to naturally regenerate it's going to be a long time before you have any decent timber value on the property.