I rebuilt my whole front end with the spicer parts available through AC Delco...they came recommended highly and they're great. I supplemented it with Hotchkis solid tie rod sleeves and Global West Del-A-Lum bushings...the steering response is absolutely amazing now. I love how alive the car feels when I turn the wheel...and how easy it is to keep it on center.
Also I highly recommend following the FSM procedure for adjusting the slop out of the steering box...and if it's too far gone replace the box.
For allignment, little caster is gonna turn into somewhat insane response and also twitchiness in the car...I didn't like it...lots of caster on a solid suspension will still yield you a good amount of steering response, but it will take away a lot of that uncomfortable twiching and the car will stay on center on the highway a little better.
I like a little negative camber...not too much, just a little, and I also like a little toe in
When I first did all that I said "I'm happy with this suspension for a while now...long enough to wait while I do some other mods" and to an extent I am happy with it...it handles very well considering I still have stock swaybars...however that said, I am observing that I don't like how much understeer you get with the stock swaybars, and I want less...plus the body roll in steady state cornering is more than I'd like. So I'm looking into swaybars as well. I'll probably hold off a little while on getting bars (until I have some better rear lower control arms), and I'm also looking into different springs. I want the car to have an overall slightly firmer ride, so Global West front springs and I guess wagon rear springs combined with the right bars to get me to the way I want the car to be.
There is no "best" handling setup though...some want a little oversteer, some want a little understeer, some want a car that loves to stay on center...all depends what you have in mind for the car. Ed Runnion recently found that his massive rear swaybar was hindering him in AutoXing because he couldn't come into the gas on his way out of the corners as early as he'd like, so he went back to the stock rear bar and stiffer rear shocks...this works well in an AutoX because AutoX is almost all transient. In a roadcourse or something though, the bigger swaybar would perform better than the stiffer shocks.
How do you want to drive the car?