That is why its best to purchase OEM parts. In particular most rubber and electrical. My aftermarket coil and leads lasted only two years. Most the time your not really saving money in the aftermarket when its replacement is more frequent. Am sure that the OEM coil and leads will last 30 years.
When I installed new rubber on the medal shields it was very difficult to get them in correctly. It is a very tight fit. Lots of pushing and pulling to line up the screw holes.
Before you install shields and the door cards preform a test on the vacuum system (door locks). The lines are probably good but the rubber connectors might need to be replace. Even it everything appears good remmember rubber does not age well and next year they could fail.

I was wondering why you removed the cruise control? Was it not working?
Good Luck

__________________
Britton McIntyre

68 280 SE coupe 'Hairball'
70 280 SL
71 280 SEL - RIP May 2010