Yeh the arch mod is getting done when the coilovers get fitted, fingers crossed they arrive today. Spoke to the wheel place today and they said there is a colour coded spacer on the wheel which actually looks like it is part of the wheel. Turns out i didnt see that. Wheel now tucks into the arch nicely. fingers crossed when the car is lowered it doesnt have any issues. Rolled wheel arches could be in the plan aswell but not sure how that would look tbh.
Thanks for your help guys