Jackaroo '99 T/D---------------suspension question

Hello again,
I want to ask a question about suspension on a '99 T/D Jackaroo.
After our Simpson desert trip ealier this month the Jackaroo developed an exhaust leak.
Had a look under it yesterday and found the flexible joint just down from the engine pipe was squashed and out of shape.
Popped along to my local exhaust repairers and had the piece replaced.
Apparently on the trip along one of the long gibber plains roads a big rock has hit the engine pipe and bent it back squashing the joint.
As owners of the T/D Jack manuals know the transfer case hangs down very low and therefor so does the exhaust, we bottomed out quite a few times.

This is a long winded way of asking , what suspension lifts have you fitted.
Bearing in mind this vehicle is our daily ride, I am after info on what you have used to gain some lift without adversly affecting its ride characteristics.
I am sure and I think my wife would agree that 2" would be good.(lol)
William