The SKS D and SKS M both hold standard AK mags. They are worth just a little more than the standard SKS.
As far as worth, last year I would have said around $100.00 for a plane Chinese SKS.
But now, you will just have to do a little price comparison. Texas gun trade has a few on there, and not one of them is less than $250.00
All men should know Honor first, above all else!
Honor is not holding your hand out for something you did not earn.
Honor is not forcing your ideas, or belief on others.
Honor is not something given to you by way of job, or title.
Honor is learned, earned, practiced and respected by all decent men and women.