Spinal Tap Scenes I believe are important

Spinal tap has very little story as it is a mockumentary, this means I do not need to follow a certain set amount of scenes. I believe however that to maintain the film's feel I need to keep a few scenes and the rest are up to me to include. I think I should include:

• The opening introduction to the film
• The origin story of the band
• The drummers history
• Stonehenge scene
• Some on stage performance 
• Nigel leaving the band
• Nigel announcing a Japan world tour
• Credits with vox pops