had another look and it looks like the greatwall rotors are identical to the holden/izusu.
have ordered a set and will see how it goes.....

Cant find any good measurements regarding the rotor/hub mounting bolt pcd, but by eye the look pretty close. If they need redrilling it may not be a truely viable option.

will also need some centering rings. not a major, i see its done on vws with audi brake swaps. will need a ring to take the 84mm 2nd gen hub out to meet the 88mm greatwall rotor centre