Not sure how to price this thing. It's a ban era Arsenal SA M-7 in 7.62x39. It's a milled AK. Walnut stock, with recoil pad. Hogue pistol grip. Someone removed the rear sight and put on a peep sight, but it would be pretty easy to replace. Because it's ban era, it has a fixed muzzle brake. Any idea what I should price this at?