It's been a long time since I knew anything about the way procedures are designed in Oz but I think you'll find that the 360 ft value is included in the obstacle elevation assessment. Once the designer has assessed the elevation of the critical obstacle, the MOC (minimum obstacle clearance) value of 1,000 feet is added - or up to 2,000 feet in "mountainous" areas.
Thus, the minimum obstacle clearance altitude, in any segment of an approach procedure, is based on the elevation of the critical obstacle, plus the minimum value for obstacle clearance, known as MOC. There may or may not be an additional allowance for QNH error and it needs to be said, also, that the critical obstacle might not be in the primary protection area - in that event, a sliding scale of MOC is used. This is based on the full 1,000 feet at the boundary between primary and secondary area, reducing to ZERO at the outer edge of the secondary area.
That's a bit of a simplification, but I think it's enough to answer the question.
HTH