If the thrust arm bushings have been addressed already, the only big ticket item worth keeping eye on is the front sway bar bushings. The regular non-AD bar has bushings fused on, meaning you have to replace the entire bar, which requires losening subframe and potentially the follow up alignment. Alternatively, you can use 3 series bushings with extra padding, and then crart some means to prevent the bar from the lateral movement.

Upper control arms and the rest of e70 suspension rarely go bad (unlike e53, but thanks for chiming in anyway), so I'd save $$ for other things.