Boeing Co. has lined up buyers for 10 of the early, overweight 787 Dreamliners whose years in storage made them emblems of the jet’s factory woes and a drag on profit, people with knowledge of the plans said. The planes, dubbed “terrible teens” for their assembly struggles and their places near the start of the production run, have an assessed value of roughly $1 billion, or less than half the catalog price. The original customers balked because the aircraft were too heavy, limiting their range. Ethiopian Airlines is in advanced discussions to buy eight of the early-build 787s, said four people who asked not to be identified because they weren’t authorized to speak publicly. Air Austral, based on France’s Reunion Island in the Indian Ocean, has already ordered two of the jets, the people said.