Though I know the OP has already decided, I'll add this for other readers:
Don't be so quick to dismiss the AK underfolders. I would not call them "useless" as others here have done. The feel is certainly different from fixed-stock rifles, but a good example is neither wobbly nor particularly uncomfortable. The cheek weld is not as good as with a fixed stock, but it is not nonexistent, and you get used to the difference quite fast. Personally, I love the compactness of the underfolder, which is an attribute I cannot get from my AR15s or other rifles. In my experience, too, the accuracy of an underfolder is not hindered at all by the different stock type. All that said, try one before you decide, and don't be dismissive of the underfolders just because they feel a little different.