Dario Perla can put you in a snappy jacket with his name sewn in the fabric, plus slacks and tie, but those aren’t his main products. “Anybody can buy a suit … but if I’m doing my job correctly, I’m selling you confidence,” said the New Jersey native and recent Vinings transplant. “That’s the big difference.” Perla, a custom clothier, has brought his 27 years in the men’s fashion world to Gainesville, setting up a shop, Master’s Apparel, at 611 Candler St.