Allen, before i forget to mention it, my mate next door just got some new bottom headlight adjusters for his Mk3 and the ball bit and cup on the end is bigger in the Mk4 headlight (like the one in your piccy), so he had to grind the ball bit down to make it fit the Mk3 cup and headlight.
Take care and look forward to more piccies once you have covered the boxes with carpet.
Avril