For starters, which C&C 27' model is it? There are at least 5 different C&C 27's listed on sailboatdata.com: C&C 27-1 sailboat specifications and details on sailboatdata.com
Knowing which C&C 27' model it is can shed some light on the year the boat was made as hull #13 was likely made the first year of production (of that model).
It sounds like your boat has some nice and recent equipment.
Unfortunately I'm with JamesWilson in that I think you'd be lucky to get 10 - 15K for her in this market.
As for places to list the boat I'd suggest Sailboat Listings - sailboats for sale
It is free, nationwide and google knows how to search it.