I agree with the Ford Performance recommendations above.
My only other suggestions would have been Steeda or Maximum Motorsports.
Both can give some alternative options and utilize newer options that weren’t around 10yrs ago when Ford designed that kit.
What are your goals with the car?
I ain’t knocking the ford kit but I’ll play devils advocate
This is just 1 personal take… you’re on a budget (killer package and/or if you dont need much). Otherwise, you’re better off piecing it together while using bilstein b12 or Koni yellow shocks /struts.
In terms springs, it’s depending a lot on looks vs how your road conditions are. I’ve always felt (personally) that the Ford kit still leaves a little bit of a rake Vs the Eibach kit lowers the back/ front a tad more aggressive. Probably gonna need either caster camber plates or at minimum caster camber bolts to get the alignment dial into spec.
As far as the bars goes, (again personally) feel that’s irrelevant (should be done to fine tune) vs 1 of the first things. Rather get the adj lca & ucr plus panhard bar done first and see how it shakes out.