Ottawa is moving on a sole-sourced purchase of high-tech U.S. fighter jets to replace its CF-18s despite furious last-minute lobbying by rival manufacturers. Industry and government sources said the cabinet is expected in coming days to approve the launch of negotiations on price and delivery schedules with Lockheed-Martin, the U.S.-based manufacturer of the Joint Strike Fighter F-35. The government is moving early on buying 65 new aircraft in a bid to “lock up the price” long before the jets start entering into service in 2017, sources said. The contract worth up to $9-billion would be awarded without competition, with the...