Guys, I need some help with some part numbers

Hi guys, I’ve been back and forth with JHM customer service for several months now trying to work out what parts I need to fix an oil leak around the valley area (looks to be identical to what is described here: http://www.audizine.com/forum/showthread.php/576849-Found-my-oil-leak-and-got-it-fixed)

I’m pretty sure all the parts should be the same regardless of LHD or RHD, but don’t want to make any assumptions, as it’s a bloody long way to get stuff shipped to Aus.

The bits and pieces I wanted to get are:

Valley pan gasket
Oil filter housing gasket
Oil filter housing Oring
Oil filter housing (billet)
Rocker cover gaskets
Heater bypass hose
Inlet manifold spacers
Relocate vacuum check valve

I’m not 100% on the part numbers, and JHM need them to get me pricing. Would I be ok to just use the Jim Ellis website like was posted in another thread for my RHD RS4? Is there anything else I really should attend to while I have the manifold off? I’m pretty sure the PCV valve and oil separator are operating fine, and it’s a pretty expensive part, so wasn’t sure whether it should definitely be done at the same time or not.

What do you guys think?