Getting a used 2010 Subaru Hatchback - need advice

I've been shopping around for almost 2 weeks now and found a deal for $17.9K for a 2010 premium subaru 2.5i with all weather package (mileage ~10K, clean history, test drive was fine). I really like the car but the dealer is not open to negotiations because the asking price according to him is already $700 below market price. Instead, he offered to add accessories: all weather mats, cargo tray, rear bumper protector, splash guards, cargo net, trunk cover (although I thought that this came with all subarus??).

Out the door price is $19.5K... is this a good deal or should I shop around some more? The car is not perfect... it has some scratches on the rear and front bumper, but they told me that it's easily fixable... is that true??

Overall I really like the car esp the all weather package b/c it always snows where I am... any advice would be great!