Hi guys newbie from Ireland. I have just purchased a 07 2.7 cayman and want to get wheels to fill the arches they will be custom made so i can get as wide as i like and whatever offset is required. Does anyone know the extremes i can go with 19" and 20" as in front and back widths and offsets. e.g. will a 19" x 11" et 50 fit on the back? No one knows anything about them over here and any help would be greatly appreciated.Is there adjustable link arms available etc to adjust rear camber if required? I have coilovers ordered with adjustable front camber plates. Thanks in advance.