I saw SS with 105 near me last year around this time for about 15-1600 so I'd either negotiate harder or wait for July. (since you're not in a hurry)

A quick web perusal of some nearby shops has a '13 SS rival for 1999, '13 SS tiagra for 1399 and a '13 SuperSix with 105 for $1,630

http://incycle.com/product/13cannond...c-178818-1.htm