GQ wheel wells are not as big as GU's. Some of them give issues with 35's, some not as much (dont ask me why, its just like that apparently).
I know that some guys have to trim the rear bodywork (arch), and remove mudflaps and/or rear quarter chop.
Spacing the rear axle backwards a touch will require adjustable rear control arms (if you dont want to trim the arch) Front should be fine on 2" lift.
Body lift would be advised and/or 80 series land cruiser bumpstops front and rear (they are longer, and bolt right in).
Kepp the lift as low as possible. 2-3" is best. The entire world has moved away from tall 4-6 inch lifts, as it has been proven that fitting the biggest tires on the smallest lift is the most effective end product for 4wding, do to obvious factors , like COG and roll-over / off camber drives.
I would investigate more on the Auzzy site , but my bet would be:
2" lift
1" body lift
(or 3" lift NO body lift - but then you will need drop boxes and extended brake lines and possibly adj pan hard rods Front and rear)
remove mudflaps
possible rear wheel arch trim (maybe not though)
Extended Bumpstops
This would be a "budget build" , but very effective.
Of course, i dont own a GQ and this is all theory taken from millions of hours of reading forums at night on my Macbook Pro.

ha ha