With regards to the wing and stripes, how is that doing something different? It has been done umpteem times to Civic, Lancers, Rovers etc, and made every single one of them look like chaved up pieces of sh!t. Why ruin a nice Legacy by doing that?
I don't know boss...!!! You seem to have taste for stuff that was all the rage in Max Power 5 - 10 years ago.
As the lads said though, it's your car. Do what you want with it, but it will ruin it (in many many peoples eyes) and drastically reduce your chances of being able to sell it on in the future.