How about the aluminum hand guard with built in picatinny rail that mounts a long eye relief "scout" type scope? Some of them seem to have a built in gas tube that replaces the original too.
Anyone tried one of those?
The scout scopes don't interfere with clip loading and place the optics out of the way of ejected casings.
The SKS never had much of a reputation for accuracy, so a scope seems a little uselss unless like me the old eyes just don't focus worth a darn on the iron any more.
I have a LER scout set up on a Mauser carbine and really like it; would like to try the system on an SKS.