I suggest you delay removing the forend to sand and clear coat. I don't see a grenade launching sight on your rifle, which seems to be on all the Yugos made from parts these days. Many didn't have side rails and usually the large wood grips are seen on them. If it's a pre-ban(1989) American Arms( a little over 400 imported), or Mitchell Arms import(400 underfolders imported) like I have, you'll hurt the value. Think twice before touching it.
Pre-Ban Mitchell underfolder

Pre-ban Mitchell folder.