GM:
From Winter's description, the pawn shop owner is not a fixer unless coerced into it. To me that sounds like Connection 2 / Loyalty 1.
Or did y'all think this guy is actually a mover and shaker?
Pretty much how I imagined this guy. I have him as Connection 2 (so he's not really a mover and shaker) and Loyalty 4 (because he is Winter's friend and someone she listens to, in case GM needs Winter to do something).
If someone else is interested in making him their contact, I've put his name down as Jiang Wen, and the pawn shop as Wen's Antiques. His shop is located in a relatively safe area (compared to Puyallup at least), somewhere close to but not actually in the barrens, and was there for a long time. It may have even started out as an antique shop before the neighborhood went to hell. The old geezer likes to complain a lot, but is actually someone who puts his customers (or at least the locals) before profit.