as long as its an australian assembled R31 all the struts are the same, its only the imported ones that are different

if you have a late 120y then all you really need are stanza balljoints and steering arms

it will al go together and work without the load spacer, but the loads werent designed to be supported by the bolts alone so its probably a good idea to get them. not hard to lathe some up out of the right sized tube if you can get access to a lathe