Knock on wood I should be done with everything tonight after a replacement front driver's axle arrives. I removed the rear airbags and plugged the rubber cap with a nut/bolt with a washer under either side. The washers squeeze onto the rubber in the cap and seal off the hole. I have the coilovers on full soft for the time being and will adjust ride height to be comparable to where it was OEM (I measured 31.5" ground to wheel arch height on average all around). I may lower it a tad, but likely not much more than an inch or so if I do as it's an SUV and slamming it would ruin the utility. I'll report back my opinion on the ride quality, but I doubt that I'll get true feedback until it's aligned as every suspension component was replaced so it's guaranteed to be totally out of spec.

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Current stable: 2005 LMB X5 4.8is, 2000 LMB M5, 2004 JB M3 6spd coupe