I went with QA1 tubular upper control arms (more camber and caster adjust-ability). Boxed in lower controls arms. Bigger front sway bar and Bilstein shocks should do it.
I have the qa1 uppers as well, very nice piece. a front and rear sway bar would stiffen things up a bit, frame connectors are always a plus and fairly inexpensive if you make them.
a new set of good leaf springs would be a benefit especially if yours are worn
