Since you asked the DScar is overpriced simply because it can be found quite easily. A Dscar like that is at most 5-10 pds imo even then most can find pretty cheap. I'm selling one later today with 30 hit for 1 pd. I'd say a few other items are probably overpriced too but listen, your items so sell them for what you want! Not my place to tell you what price to sell your things for...
Which is ironic considering I did just that^ XD Good Luck with your sales!