I'm going to a tactical rifle course that requires me to bring an AR and a AK. I have a Bushmaster ORC so the AR is not a problem, but all I know about AK's is how to load and fire the thing. Staying under $500, what brand, or brands, are the best choice? I have heard that the Polish models were good, and that the East German were better, but expensive and hard to find. So, I guess I need some experienced advice.