iv looked through the official offset thread but am still confused when it comes to tires.

wheels:
Front - 18x8.5 +30
Rear - 18x10 +25

tires i think will work:
Front - 245/40-18 Tires
Rear - 275/35-18 Tires

The fronts should be okay. but for the rear, i dont really want a stretched tire. actually i want a meaty tire. what size would you suggest? and what brand, i want a drag radial style looking tire. such as my hankook rs2/rs3 or Falken Azenis RT-615. PRICE IS NO OBJECT on tires

thanks in advanced