VT-VZ oil catchcan is available here
By popular request, we have designed and built a simple but effective oil catch can kit to suit the VE Commodore. Incorporating a spun alloy tank which is then Tig welded, the kit includes everything needed to bolt straight up to your car in less than half an hour. The tank features an 8mm drain port at the base.

Quote from the LS1 forum:
"Great item and well made in typical ASE fashion."