So, fitted the said wing today, and it has to be said that fitment is superb, probably due to the closing panel at the rear of the wing now being positioned in the correct place (See my first post for explanation) the important thing is that the wing can be fitted without having to force anything into submission, the panel itself though will require plenty of work to get perfectly straight, and ripple free, but thats a different story
This first pic shows the upper swage line close to where the flasher repeater fits, note how the swage has lost its definiton, compared to the swage on the door, this is due to worn out tooling in the factory, god knows how many millions of these things were stamped out!

2nd pic shows the wing fitted (not permanently) and an even gap top to bottom, top swage lines up nicely, but the lower one appears to be out of line by a couple of mm, this is because the wing has a very slight bow to it down the rear edge, placing the wing on the floor, and gently applying a little pressure to the panel will sort this out. Also notice that the reflection of the florescent light runs through the door, and carries on in the same direction as it passes through the wing, thats something you rarely get when fitting pattern parts

When the wing get its final fit, the car will be sitting on it wheels on a level floor, with the strut brace slackened off, just to make sure that the shell is under no stress whatsoever...
Thom