I remember fixeruperer and a few guys on toymods had issues with ovaling out the holes that the lower 4 link arms attached to. I don't remember if they had solid links but that's something to think about too.
I personally prefer at least one bushed end. I just put harder bushes in my standard arms since I'm too cheap to buy whiteline arms or half/half arms from the likes of Battle version or Cusco. Let's face it, we aren't racing in some competitive series like IPRA or ADGP nor are we going for world record lap times like bazda. Just trying to keep the car nice enough to drive and have fun in and together enough so it lasts through several track days without something breaking. and so, is that stuff absolutley necessary to blow your money on?