Lonestar makes good stuff, but you can't go wrong with Quicksand or Cusom Creations for A-arms and Swingarms. They are not mass produced crap...
I a myself running a quicksand rear swingarm and the welds and build look pretty damn solid to me, I wet to the Cusom creations A-arms because I liked they way they were construted and there were not as many adjustments. but both companys seem to make some solid stuff.
Also check out alba pro-comp a-arms, I think they are a bit overpriced but if you can get a deal on them by telling them your a members of American Sand Association I think. They also have a compleat front suspension kit that including the shocks and a-arms.