I converted mine even though I didn't have your type of issues....mine were easier to solve but just got sick of doing it all the time. Besides, doing the math, it would be A LOT cheaper to convert to standard suspension (in the long run). My 2 cents....your call

BMW X5 4.8iS 2005

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BMW X5 E53, 4.8iS - 2005
Professional Stereo/Nav with DSP (modified BM54 module) - Converted to Eonon GA5166X with Reverse cam
4-Corner Air Suspension - Converted to BC Coilovers