If you are lowered, you may likely need to clearance to fit a 10” wide wheel back there. With the installation of those shocks, springs and Panhard bar, it sounds like your car is set up more for handling/street rather than strip/street.

Ever consider just going with a silver 17x8 front and 17x9 pony setup through LMR? You could run a 245/45/17 front and 275/40/17 rear then. Car would look awesome too.

Depending on what year your coupe is, they also have 17” 10 holes if you want a more old school look.