Two former directors of Austin Reed who rescued the manufacturing units of men's wear tailor Chester Barrie say they are planning to expand the business.   Chester Barrie, one of the longest-established names in British men's tailoring, was forced to call in the receiver earlier this year. Apparel retailer Speciality Retail Group (SRG) bought the Chester Barrie brand, while Colin Evans, former managing director of Chester Barrie, and Ainslie Penson, his sales director, set the remaining business up as the Cheshire Clothing Company.