As far as I know you have 2 options for our suspension: BDS or AEV. Also some people are using adjustable links for the leveling sensors.
I have BDS and never been happier. Last time when I checked AEV was on sale for $1500 I think.
Both brands are great quality.
Yes, 9005 for low
Yes, 9005 for low/high beams in projector headlights. For high beam you need something smaller than usual due to limited space. I've just bought these from amazon and they fit and work great...