BY JOHN SEELMEYERjseelmeyer@nnbw.bizMichael Conger is rattling around by himself these days in an office building a couple of blocks from the Capitol Building in Carson City.But if things go the way that Northwire Inc. expects, the office shortly will be filled with sales engineers who will be drumming up orders for the company headquartered at Osceola, Wisc.And as the order book grows, the maker of sophisticated custom wire and cable products expects to open a manufacturing facility in Carson City that could employ about 50 people."We'll be able to create some really good jobs," says Conger, the president of Northwire …