Have managed to beat out about 50% of the damage yesterday and fit bog standard lenses to the back until I can find another set of lexus ones. So, the car is legal again.
The problem I've got is trying to get the rest of the dent/crease out. I'll try and upload some pictures at some point.
The dent/crease I can't beat out is in an area where I can't get anything in to knock it out (not even a small hammer as the gap inside is probably about 3 inches wide. It's behind the inner wall of the boot. I can fit my hand in and feel the bump but obviously I'm not gonna be able to push it out without some mechanical aid. I'll try and upload some pictures so you can see what I mean.
I want to try and get it as straight as possible before attempting to fill and respray it so if any of you guys have got any ideas as to what will get the rest of this dent out then please fire away. I've been looking at those suction things on ebay but am not sure whether the dent is too big for one of those to work.
Cheers,
Andy
Before:

After:


I've covered it with clear tape at the moment to protect it from the elements!