all those offsets are too high for a "flush" look. dont forget that tires are part of the whole equation with the wheel specs. and are you looking for 18" or 19"?
for 19s, i personally would suggest +25 front with 225/35 tires, +20 rear with 245/35 tires.
AND a healthy drop. stock suspension, i wouldnt bother with trying to look "flush".