We need more information to help you estimate the fit.
Is your car lowered? How much?
What are your spring rates? F? R?
How much negative camber are you planning on running?
Regarding the 8.5 +50 on the front, the minimum tire width that would look decent is a 235. On my last post, I mis(spoke)(thought)(typed) that I had a 55mm offset on the front 8.0 when in fact it's a 52mm. I rub slightly on HARD trailbraking or HARD u-turn with my setup which is:
8.0 et52
235 yok avs-es100
200 front spring rate
Lowered 1.5"
1.0 deg neg camber
If you are not lowered, or have a stiffer spring, or have more neg camber, you'll have no interference.
On the rear, if you go with the 10 et 50, you'll be at the outer limit if lowered all the way with your eccentric bolts. The most tire you could get is a 275 and you would have to remove the metal clips at the back of the rocker panels. The 10 et 60 is the better choice, you'll be able to get a 285 on there.
Hope some of this helps.