With those offsets,it will be difficult to lower your car .There are no spacers on the wheels,right?
The tires in the rear are the problem. Rolling the fenders fixes the inside rim only.Waste of time here.
An option would be to add wheel well extenders.They bolt on,painted body color.
This is if you wanted to drop the car a substantial amount. They would also
give your car a competition hi-tech look.Much body work&paint cost.
Your wheel situation is an example of not planning ahead for what you wanted in the finished product.
The wheel offsets needed to be about 20-22 . In addition,the rear wheel at a 10.5" width is a bit much.
A 8.5-9 would have fit the tires. This fitment would have brought the wheels in a bit. Lowering the
car and rolling the fenders would have worked.