That's not how I work. I like to modify, push the boundaries, try something new...I suggest just putting 31.6 inch tall tires, as downsides (driveability, additional work) of going to 33 doesn't outweigh the additional benefits.
Just put 265/65/18 (or 265/70/17), they should fit with no modification. Also, this is the same size that Cayenne Transsyberia rally cars used back in the day.
Life would be very boring if we just all took the easy route.