Quoted:
So overall, how would you guys compare this to a modern Stag, DPMS, Double star, Delton, ect? Those are the only other things in my price range and don't come with the extra stock/pistol grip. Actually, they cost more here.
Don't let us discourage you here. Remember, we're by and large a bunch of anal retentive purists (to one extent or another) who will gladly point out every little "flaw" in a rifle––even though they're not really flaws. For instance, you have no washer behind the flash hider, but even if you installed one, we'd be sure to tell you if it wasn't the "right" type for your particular model. That's not a functional flaw...just a detail.
As I understand this, first and foremost, you're looking for a shooter, right? Historical accuracy is perhaps secondary?
That's cool. Then what you need to pay attention to is condition. Examine all parts carefully. Is the bore shiny and clean? No rust or pitting? Check the chamber condition. Look for damage to the upper. Cracks in the furniture.
If you have gauges, it's nice to be able to check throat erosion and barrel straightness. These are things that "new rifle" buyers don't have to worry about but sometimes we do.
If you see anything you question, get a good closeup pic and post it here. We'll give you our opinions (as you've probably noticed).
Bottom line, it looks like what you've shown could be turned into a retro style AR, using whatever additional parts you prefer. You could buy a cheap A2 lower and make a shooter (be prepared for heckling), or you can start collecting the "correct" retro pieces and studying the variant guides.
As for whether it's worth an AK or whatever you're giving up for it, that's something only you can decide. Personally, I'm not a big AK fan (I respect 'em, just don't enjoy them very much), so I'd place less value on an AK than others might. On the other hand, I never sell or trade guns. I always find some other way to get new one.
It's all up to you!