Crikey!
I think the key issue is the cosmetics - swapping the sidepipe exhaust off and replacing the wings is going to be expensive.
You could leave the tips - but having dummy sidepipes would be a bit weird...
If it's just the noise - look at getting different cats fitted or tweaking the sidepipes (others here have had custom exhaust work done) which could change the sound ot your liking, but not mess with the looks...
^ This, its been done before with good results, maybe your best option, visual & cost wise!
