Bilstein makes awesome shocks and last a very long time !
You must revalve the "sport" shocks in order to match your spring rates ! Thats all. They did not "bottom-out" at all when I had them . If you are not competing or racing the e30's, why worry so much. ?
Like I said,
sway bars,strut bars, poly bushings, quality coilover kit, and you'll get a great handling road e30.