I want to go with draglites but I'm not sure how wide to go in the back and with what backspacing. As far as the front I was thinking 4 or 4.5 wide but wasn't sure what backspacing. How wide of a tire could I get back there? I wanted to go with et streets 315/60's. I know there's a chameleon convertible on here that has them on there but I can't find the picture.