If you want a deal it’s a good idea to get to the weekend antique and flea markets in Chelsea early, but 3 a.m. on a Saturday morning seemed a bit much. I’m there to meet local antique guru, savant and artist Robert Loughlin and his partner, actor Gary Carlson, while they shop at the bazaar. Robert and Gary have been fixtures here for the last 20 years. They pick, deal, trade and bilk the ignorant out of their 20th century artifacts, then sell their finds to the hottest upscale design stores in the city, completing the cycle of commerce that is New York decorating. They are high-end pickers, a term antiques dealers use for someone who picks through the junk for diamonds in the rough.