I had one and sold it for 200. I searched high and low , including my black book of values, to no avail. One source online said it was a canadian version of a cheap american shottie. Anyhow, other than it being quite hefty, I found it it quite reliable and I value reliability. Good luck on your search. I'd say 200-275 depending on condition.
Apparently , replacement parts are not too easy to find.