Personally I would skip on the Eibach's and just get a pair of Moog 5660 or 5662 springs and cut them to drop the car.
The Eibach's are around 660in/lbs while the Moog 5660 (S-10 springs) are 639in/lbs and the 5662's (IROC Camaro springs) are 706in/lbs.
The Moog springs will only set you back around $60 for the pair.
You can also get the Moog CC635 springs (F-body cargo coils) for the rear and trim them to lower the car also. But if you use those you need to buy a pair of rubber F-body spring isolators from a dealership so that they fit into the upper spring pocket properly.
How much did you pay for the larger bar? F41 suspensioned G-body's came with 1.25" front bars which plenty for a daily driver in my opinion.
Of course this is all assuming these parts are for a G-body.
I've never used any polyurethane bushings in the front end other than sway bar bushings and end links. I have them in the rear and hate them. I'll be yanking them out this summer as they make the car ride worse than a work truck.

I'm replacing them with Global West Del-a-lum bushings instead.