Rear suspension air bag replacement

[vegasX5]

My passenger side rear air suspension has been leaking overnight the past couple of weeks intermittently, so I figured I had a slow leak. It would pump back up to normal height within 20 seconds or so, however today I just heard loud hissing and it wouldn't go back up. It could potentially be a connection/hose, but since I've just rolled over 100k I'm guessing there is a good likelihood it's the whole bag that should be replaced. I've seen the part listed for around $180 and want to do the repair myself.

Is there a DIY procedure listed anywhere? I've searched quite a bit and seen several similar posts, but I've never seen a write up on how to actually remove and replace the bag or any photos of anyone doing it. I've done lots of conventional/non-air suspension work on several cars but never on an air-ride equipped vehicle. Any help would be greatly appreciated!