Hmmm... STILL waiting for info / feedback on how the Dobinson shocks and springs feel and perform... Also I've just tripped over info that the factory gear in at least TH is Koni shocks. I'm NOT happy about that as I am not a fan of Koni. I never considered that the factory shocks might be Koni but now I know for a certainty why it doesn't handle as well at speed on tight twisting roads as I expected it to (ie. even allowing for it being a tall SUV).
Have also read people saying they've used a combo of Aussie Lift and the Dobinson setup for a total of over 2 inches - for at least 5000 miles without issues!
EDIT / UPDATE: WOOHOO!!!!! - it seems Bilsteins have been available since September in the US - in both B4 and B6 versions. B4 are basically OEM equivalent and B6 are "Heavy duty" or "performance" version.