1969 Camaro Rear Fendor Modification Question - 10.5" wheel

[mtm87tx]

I have not found what I am looking for quite yet. I have heard some people are running a 18x10 under the back of the car.

My question is:

• Can I fit a 10.5" wheel in the back of the car with a 285 tire? Can I trim or roll the fender to accomplish this?
• I really want to get just alittle bigger tire without having to mini tub to get the full 335
• Will the coil overs in the rear help so I can more precisely set the ride height?
• I am not looking for a slammed car and really do not like the look of much if any tire inside the wheel

Just a thought as it seems some of done the 285 but on a 10" wheel.