Extended warranty

[holmz20]

Hi Guys,
I have read a lot of good info for hours on end about extended coverages. Personally I dont want to buy on on my 07 X5 3.0 which is equipped with all the options available , third row , nav, HUD, etc. My concern and worry is on the pneumatic air bag rear leveling suspension which is costly to change. Currently the beast has 67k miles, water pump got changed at 65k costing me $1200 for replacement.
I have looked at a lot of 3rd party warranties and cant find any that cover air bag suspension on them except for easycare Total plan. My car is sagging sometimes when left for two days in garage on passenger rear. With prices mentioned below which i got a couple of months ago, can anyone recommend a warranty that covers airbag suspension as well and had experience with?
I would hate to get coverage and then find out its not covered even though I read through all the fine prints.

easycare statedcare 250 deduct 5342
3yr 36k, 500 4432 ,
2 year 24k 3668 500 deduc, 4297

Any suggestions welcome. Price to do both sides rear suspension airbag replacement around $1200 installed. Figured pay $2000 more and just get coverage/piece of mind as well.