O530s was never sold as a chassis, only as a fully built up with
bodywork. If the aust operators had to ship a few thousand fully
built up buses, its going to cost them money that they didnt need
to. Aust has their own bodybuilding companys, thus O500LE or the
previous O405NH chassis had bodyworks from aust themselves for cost
saving.
O500LF however, is the similar chassis for O530 with full length
low floor, but this chassis was only released recently.
