There is also a rubber bushings set where the guide rod connects to the control arm on each side, sometimes referred to as the lower outer control arm bushings or guide rod to control arm bushing.
2 x # 1233301475
There are also bushings on the front sway bar where it connects to the body. Two of them.
2 x # 1233230585
And bushings where the sway bar passes through the upper control arm, four of them.
2 x # 1163334014
Any plans to install new shocks? New spring pads?
By the way, your lower control arm bushings (# 1233301375) are too cheap to be good
I know that Lemforder doesn't provide an aftermarket alternative. And the Genuine article are very expensive.
However, there is an alternative. You can install the lower control arm bushings normally used on W126 vehicles. Mercedes installed them on "harsh duty" W123's (I presume this means things like police models, limos, taxis?). The other upside is they install without needing to flare the center tube (which is something that, if it goes wrong, necessitates another part order).
The part number for the W126 lower control arm bushings is 1263300075 Lemforder provides these still, at a reasonable price.