For the fronts, you may want to shoot for a slightly lower offset or move to a 245. I wonder what the performance difference is between a 245 and a 255 on a 19" rim. I suspect the stretch of the sidewall has the potential to cause issues when cornering. FWIW, your front choice is essentially the same as mine.
Link!
For the rears, 285 seems a bit too much. Try with a 275/35. Tire choice is somewhat odd on tirerack, but it would straddle the middle ground of 265/35 and 285/30.
Could also do 275/35/19 on a 19x10+42.
(This is all speculation and guesswork on my part, I have no background experience with aftermarket rims.)