Ching Chun Koon wasn't the only temple featured in this film, we also get a reasonable tour around Wong Tai Sin in Kowloon.
Later on we get a look of the ornamental Pai lau that fronts the temple complex on Lung Cheung Road. This is the version that is currently still in place next to Lung Cheung Plaza (actually, the mall has recently undergone a renovation and is now named 'Temple Plaza'). I don't know when this version was installed because the previous one is visible on Kung Fu Killers filmed around 4 years earlier. You can see it in this post here. So, sometime between 1974 and 1978 the current version was put in.