A new drive motor fixed alot of problems it was building too much pressure causeing breakdowns. I've got my own sawmill but we do have alot of them in the area. I can count 10 to 20 different mills within a 20 mile drive here. We also have guys with portable band mills that will come to the place and saw on site.
What kind of trees are they? We have a guy about 10 miles down the river, that has a portable saw mill, but his doesn't like very big logs. 2 years ago, I cut a bunch of Pine to make into lumber, and the big ones didn't get used.