Now the creaking starts, and the rear banging, and damn if I cannot get the car to stay on the road during bumpy concrete highway driving. I cannot see any fluid drips from the bilsteins,(110K miles) or from the steering rack.
Is there any other possiblity for me to correct these problems?

What is toe in on a lowered car worth to these problems (HR Sports installed).

Well I had noises at one point that turned out to be a loose bolt that secured the control arm to the subframe.

First thing I'd check is your nuts and bolts. Check and make sure they're still torqued to specs.....Some recommend retorquing after 500 miles to give the suspension time to settle

The rear banging could be the nuts that secure the top of the shocks to the housing. (a few posts up from here covers this)

Creaking sounds could be bushings were not lubed or maybe binding

The shocks have 110k on them? Is it 110k over that same bumpy road day in day out? If so I'd bet that they're worn out.

How old are the springs?