Look back through the thread, and you'll see lots of 74-style owners here. It's all I own. I don't own or run surplus, but I may pick up a couple of cases. It's corrosive, which I'm not a big fan of. Both of my go-to guns are 5.45x39.
The best available one right now is a Arsenal Saiga SGL-31, which start around $820.00. You can find others for cheaper, but like all things, you'll have more risk of defects as you sink down toward the $400-500 range.