I got mine done at Pedders, no camberkit 4000km's tyres still look brandnew.
You cant use lowering blocks(like AU I think?)and get the 16" spare wheel on(what size is the XR spare 17"?). The lower shockie mount sits inside the wheel area...
Pedders used reset XR6 springs in my ute, absolutely no load carrying capability at all Doh!
You can get some airbags that will fix this problem(my next mod)for about $350/375
pr, you just pump'em up when needed.
Dont lower the front springs any more than the factory sports settings, I did and I will be raising back to factory setting soon, the black plastic lip thingy underneath the front touches every thing...and the rear of my ute is low as you can go(not legal)the nose of these ute's is way to close to the tarmac from factory, thats why Im going back to standard height at the front and leaving the ass dumped...the retro stance