I agree, unless you are going to be doing some pretty extreme stuff I would suggest you start with a mild lift which you can get off the shelf and have on the car in a couple of hours. I am takling about something like the ARB (or OME) 40mm or 2" lift kit as this has been deisgned and tested for the D2 and they have done all the hard work for you. I have spent many hours debating about whether to go higher, longer etc etc but in the end the effort and expense has held me back so i have remained with a 40mm spring lift and have only added longer shocks to the rear for a little bit of extra travel......work in progress:D For your info though, I go pretty hard withmy D2 and it to date has taaken me up and down pretty much everything I have thrown at it with a 40mm lift. A lot comes down to tyre choice and driver skill IMHO. The rest you can add as you go and by that I mean, lockers, gear ratios, external protection etc etc.
I would hazard a guess (and please excuse me if I am off the mark here) that you are seeking a 40mm spring lift with shocks to match so the ARB/OME kit would be a good buy IMHO and will set you back from memory around the $1300 fitted mark from ARB or the like.
Good luck and keep us posted, Mick
P.S. For info, although Slunnie has the 4" lift, he has helped me a lot with my D2 set up as have others here who have been through this process many times.

