If you have a burning craze to get an SKS, then my advice is to take two aspirin, and go to bed until the bug passes. :-)
The vast majoriy of folks I know that bought an SKS were originally thrilled with its reliability, simplicity, chrome bore, and low maintenance, but eventually got very bored with its poor accuracy and poor sights. Most spent lots of money on high mounts, tap mounts, and every other type of mount, trying to get good and practical sights, before selling it off, at a loss.
The SKS simply is what it is. It's like a six-inch cresent wrench. You can't really make it into something else or make it much better than it is.
Regards,
Mannyrock