Magnum 5.9l Rear Main Cap or Full Set of Caps.

Looking for either a just a rear main cap or full set of main caps for 360/5.9l Magnum. I'm not sure if 360 LA caps will also fit I'd assume they would. I'm located in Australia so need a seller that's either prepared to ship direct or via my shipping agent who has 2 locations in mainland US.

Cheers
Charlie