UPDATE:
Over the past few days I have been considering fitting the original 3.8L Ecotec V6 engine back in my VS. Reason is I don't know how long it's going to be until I will be able to afford to get all the work done that I want to do to the L67.
So I was thinking of getting an engine stand and slowly build up the L67 with a new cam and other parts that I listed, and then when it's ready I can just swap them over.
I figured I can still use the same wiring loom, use the ECU out of the VS ute, even the clutch out of the VS ute. That way I can still drive my VS while I'm getting everything else done.
But at the same time, I'm not sure whether it's a good idea or not. Thoughts? I think I will be able to make my decision easier after my tax is done...