T/C Hawken Cougar

I have a have question about this gun since I can't find much info online about them. I have a guy wanting to trade me one for a pistol. He says it has been fired twice and looks really clean in the pictures. So, my question is, what is an average value for one of these? Also, how hard would it be to sell if I do trade for it? I'm not really into black powder stuff so I would probably turn right around and resell this gun. Thanks for any help