Any problems using poly along with rubber bushings

You shouldn’t have any issues with running the rubber offset UCA bushings with polygraphite lowers. It’s not even like those bushings they see the same forces, the UCA just stabilizes the top of the spindle, the majority of the weight of the car is carried by the LCA.

The rest of your plan sounds good! The greaseable LCA pins and adjustable strut rods are the way to go with poly LCA bushings. And the Bilsteins and 1.03” bars are a proven choice. Only other thing would be tubular UCA’s for more positive caster than the offset bushings will allow, but that’s not mandatory and could be something you do down the road too.