First, get to the office, call your blacksmith and check on the handmade nails you've ordered. Next, check to see if your custom- made leaded casements are going to be done on time. Then, drive to the site and make sure your handscarfed clapboards are being installed right. But before you take lunch, see if you've gotten any calls on that 17th-century saltbox you've got packed in a truck in your backyard. These are just some of the tasks that fill the average day of Brian Cooper. He is the founder of Early New England Restoration, now in its thirteenth year. Early New England Restoration specializes in dismantling antique homes that are slated for demolition, and assembling them where they