DBA make leyland P76 rotors, check out
http://www.discpads.com you can order them over the internet and pick them up at Parramatta, you can't buy DBA stuff any cheeper than from here on line(the only way to order) a friend of mine is a mechanic and he won't install new DBA rotors if they come from there, its as cheep as if not cheeper than trade price.
You can get standard, slotted or slotted and drilled from here.
P76 is the same pattern as Ford Falcon so if you use a ford 9" diff keep the front the same.
Rod hadfield (castlemain Rod Shop) has adaptors for the bearings to fit the HR stubs or you can get a set of his lowered stubs and the adaptors fit them too.