Right... i've quickly tried the 'bolt-through-wing' idea but it was clear that no matter how high I pull up the sides of the bumper the corners sit too low!!!... resulting in a mahoosive gap!!!...

The centre of the bumper is as high as it can be (towing eye's sitting on the cover).




Not sure if there's an issue with the bumper or not... may have to bite the bullet and get another one...

...to be honest its things like this that make me question whether the project's worth it!!!