not sure about the natural weight issue...i think 2" is 2" is you get me drift.If you add a winch & put low load 2" springs on you may get that effect so go for ones that are good to take add ons, most suppliers do 70-100kg load versions.
Like distd5co, Ive got +2" stainless brake hoses & the air bag spacers.
Also go for +2" shocks (Tuff Back are good quality & not expensive) all round & the bump stops as he mentioned-if an air bag blows, youll sit the arches on ya tyres-not good if youre moving at the time!
Handling is as good as standard, mines got ACE too, so cant comment on a non ACE model if applicable.
I put a new HD UJ in my standard rear prop & new donut bush. The front one I knackered almost instantly but think my UJ's were pooped anyway . I now run a Bailey Morris double cardan wide yoke version with extended slip-BUT-if you change this youll need to add spacers to your gearbox cross member (click me profile to see my previous post on this) as the axle will pull the new prop down further due to the lift & the x-member gets in its way. Youll end up with a nice dent in ya prop (doh) & losing out on articulation.
Thats pretty much it...some people might tell you you should castor correct etc, but neither myself or distd5co have had no probs yet...
I know a guy who runs a shortened D2 chassis challenge vehicle with a major lift on standard arms-theyre alot stronger than people think
Obviously keepin the air bags allows the use off the off road height button (another inch or so) & I have recently seen a D2 with the spacers at the rear but the guy did 3" at the front?! Normal use, the nose points to the stars & only levels out when he raises the back up...cant see how his on road handling is much cop though...
After all that youll be able to up your tyre size & you dont need to cut any bodywork which is a touch !
Lets see some pics of the victim then!