Thankfully not one of your students being fleeced for dual instruction at probably £140 per hour doing general handling at night with no electrics, which is neither a requirement of the syllabus for the grant of a night qualification and IMHO not entirely safe.
The landing light near cloud sounds a great idea but then again why are you flying near cloud with a PPL holder who wants a night rating?
Hour building at the expense of the student ?
TJ