I don't know how much room you will have for the increase in diameter of 6.7%. You will need to lower your coach as far as possible and measure, to see if things are getting close, and if adequate room still exists. Then you will need to find some way to recalibrate your speedometer, as what used to be 60 mph will now be 64 mph.
At the front you should turn you wheel as far as you can to each side, while the coach is as low as possible and see what clearance, if any, is left, then add your extra height and see if there really is any room left. It might surprise you.
I know that on my Contessa, with the factory specified tires, they touched if turned as far as possible and lowered. This attitude will closely simulate turning into a driveway with a sidewalk crossing, as eg. going for fuel. On my present coach, there is much more room.