Alright mate mine had one of these too.......
If you remove the screws, top and underneath, this will let u remove the brackets. and if u gently prise the sun visor upwards, u will find that the sticky foam tape underneath it will just split apart and separate. You will however have some tape left on your paintwork. I run a valeting company with my dad, and i used some Tar and Glue remover, and picked it off, its a slow process, but once you have the most of it off, you can T-Cut off the residue and polish over that when done........good as new !
I would do it for you but your probably miles from Aberdeen lol !!
If you need i can send you down some proper quality tar and glue remover, to soften the tape stuff.
If your not wanting the rear spoiler, let me know and i will take it off you, i broke mine after i took it off when i stood on it and cracked it, so couldnt put it back on i only took it off to clean underneath it too !! GRRR !
Will gladly trade u some cleaning stuff you need, polish, tar and glue etc, for it or give u what u want.
Let me know mate
Michael