Few Hundred bucks? More then normal given the current panic
I suppose it is all relative to what you want to get out of it and what you paid for it... if you overpaid then obviously it'll be harder to make up what you spent.
Remember unless the person buying wants EXACTLY what you put on it the accessories don't really add to the price. You'd be better off reverting it back to stock and selling it in parts. Also selling the extra mags separately may help.
I'd take the Vortex for the right price