Hi Ryan
The workshop manual recommends 7.5w oil with a level of 104mm (measured without springs and preload tube). Note that the manual says to use a special tool (88713.3203) to pump the oil into the various orifices. (Whether it's strictly necessary, I don't know.)
I'll post the relevant instructions from the workshop manual below but note that I can't show the pictures. If you like, I can send you the manual on CD and you can print off the parts you need.