I've got a PLR and it's been flawless. It's actually a lot simpler of a design than an AR and has less to malfunction. The SU16-E is the stock that you probably want; it has the pistol grip and the AR style adjustable stock. In the mean time start looking at your hand guard options. You can go w/ the factory, modify a Magpul MOE (this is what I did), or look at other aftermarket options. Red Lion Precision makes a pretty cool rail for it. One thing to consider also is if you go with the factory hand guard, there is gap between it and the receiver that works with the SU16-C stock that folds (butt of the stock folds into the gap).
No matter what you do you've got a GREAT AR pistol - enjoy!!