Spend $100 more and get an arsenal.
Don't get caught up in the ammo and mags and over pay for a subpar gun. Even walmart sells 7.62x39 tula. It's $3 for 20. So thats $15 bucks in ammo at retail prices. If you buy 7.62 in bulk u can get it down to .22 cents a round. 9 mags is intriguing but you would have to look at 'em first. If its plastic and says "made in USA" then they are tapco and very cheap.