Honestly go with the widest possible in the rear!!! Front 255 or 265/35/20 should me good!!!

the wheels are 20x9 ft and 20x10 bk
for the 285/35zr20 and 255/35zr20 on tire rack delivered to my door all in at 1800.01
for the 285/35zr20 and 265/35zr20 on tire rack delivered to my door all in at 2132.86
would there be a noticeable difference between them for the extra 332 bucks ??

no way and I would never spend the difference for approx 10 mm^^^^ Oh use the 332 for something else on the car.

^^^ x 2

just ordered the tires 1797.76 from tire rack delivered to my door. The best price I found in red deer was 2200 plus install. Second time I have used tire rack and it is well worth it. :)

geez I thought it would be a lot more than 400.00 in Red Deer over Tire Rack.