Welcome to the forum.
I would think that you are in the right neighborhood perhaps a bit high. Hard to tell from the photos as they are small and a little blurry on my monitor as to the exact condition. Also, prices here in the US may be different than where you are so only you know how that affects a published price.
Also, what are gun transfer and ownership rules like where you are. In some countries, even having a permit sounds like a real hassle. If that is true in your area then the buyer pool may be somewhat limited and value could either rise or fall based on that alone. Also to consider is are there folks out there with $2000 to $3000 willing to spend it on a firearm. Here in the states it does not seem to be an issue but it might in other areas.
Unfortunately only you know some of those answers. Best bet would be to throw it out there and see what offers you get. If it doesn't get any bites after a month or so then you are probably asking too much.