To limit further delay, I just installed the rear Bilstein HD's (B6's) with my stock NA wagon springs and have been very happy in the interim. Stiffer in the rear without being harsh, and no bottoming out "thud" noise transferring into the cabin like before. I feel much more secure driving my mountain pass commute well above the posted SL.
I also have the front Bilstein HD's, but am waiting to put them on as I noticed my CA's are showing distress and plan to replace them all at once and go get an alignment. So I have gone down that rabbit whole......which is DEEP, and I am thinking of splurging for Lemforder through FCP Euro for their Lifetime Guarantee............Reading too much leaves me with decision anxiety
I have also picked up first order harmonics with this cold weather, so I plan to replace motor/trans/snub mounts as well, and before CA's.
Stance-wise I took off my old winter (non-studded) rock hard tires, and removed the plasti-dip (PITA), and the summer tires look much better at the factory 205/55/16's. Maybe it was the deception of the black wheels and tires. I did buy Nokian Hakkapeliitta 9's (studded) in 205/60/16 and they are mounted to winter wheels. Plan to mount those in the coming days.
Way more info, but in the short term, happy with stock springs and B6's in the rear.