You're fine man.
I think you'll find you'll have plenty of room at a 30 offset. I'm running 18 plus a 10mm spacer so effectively a 8 offset.
There's a ton of space In the wheel wells on these cars.
But from the sounds of it, you want aggressive, and I doubt 30 offset will be enough for you. It'll be tucked in very close to what stock looked like.