Ty, the problem with the diff was the nuts holding the wheels on were the wrong type, needed a set of the longer ones. It had made the studs loose as well, so that's all sorted now.
Have to take the spacers off for rego too, so I'll just bolt the 14's on until the 15" superlites get here.
Picking it up tomorrow to get the engine bay all painted and ready for the engine to go in. Not long now!

I'll post pictures when I pick it up.