I need to fix a big leak on the self leveling suspension that started this weekend on my 1988 635csi. I am leaning toward replacing the whole thigh with a regular set up and so far have seen a Kit by Brekkers for $450 and one by Bavarian for $115. It's safe to assume that the bavarian kit does not include spring and shocks as the Brekkers kit but then again I have no idea what is needed to eliminate the self-leveling system. What do you guys recomend? What is needed? Do you have to replace shocks and springs? Give me a hand on this one.