I attempted for the first time last week to fit my factory hood cover, I had been given some advice from another owner and went at it with great confidence. I popped the rear opening, fitted the 2 holes through the pins, 20 minutes later I had got no further.
When I went to fasten poppers the holes went out of line, when I took my eye off this then the alignment of the cover and rear opening pins moved. When I worked on the offside, the nearside held me back and when I worked on the nearside ......
Argueably the biggest waste of time, the last time I had so much fun was putting up the 44 Sport hood for the first time.

I believe these hood covers cost about £200, I drop kicked mine into a box marked "bollocks"

Sorry this was of no help to you, but occasionally something reminds you of a precious moment and I just had to share it.