Just thinking, in addition to longer shocks, you might install longer pre-load spacers in the forks to keep the front end up as well as the rear end. Probably don't want less than 20 to 25% static sag but if you have more sag than that on either end you can certainly up the pre-load to raise the ride height.
If you are ordering Hagon shocks, I'm sure you are getting an appropriate spring rate there. If you weigh over about 80 or 90 kg you probably want stiffer fork springs as well.
The urge to buy terrorizes.
'08 Scrambler - work in progress...