I'm not sure what EPS does on the lower control arms but the poly bushing they put on the track arms is a downgrade from the OEM monoball in my opinion, and under hard driving the poly bushing could allow caster changes in the wheel that the monoball doesn't allow.
I'm running Meyle LCA in the backs, and trw trailing arms, you can get them.from amazon for very affordable.
Getting the ball joint loose on my old lca was a pain, had to use a pickle fork and hammer. Trailing arms were a breeze