When it comes to the glitz, glamour and sheer decadence of The Real Housewives of New York City, it doesn’t seem too much of a stretch for a Sex and The City character to be based on one of the show’s cast members. SATC oozes just the same cosmopolitan flair as RHONY in its olden days. And there’s a rumor flying around that Dorinda Medley inspired the character of Susan Sharon. The Real Housewives of New York City features some of the chicest of the Housewives. Sonja Morgan, LuAnn de Lesseps, Ramona Singer, and Dorinda made up the OG cast. The ladies aren’t afraid to splash the cash and show o…