Hello all !!

I want to take the Work Wheels Emotion CR Kiwami wheels but i need your help.

I saw a lot of message on this forum, internet etc etc... but i don't know what i can do !

I want to stay on 245/40/18 or 255/40/18 on tires but i don't know which wheel taken.

18×8.5 +47 => 245/40/18 => ok?
18x9.5 +30 => 255/40/18 => ok?
or what??

I want to have the concave effect.
Have you got some pics to help me for my choice?

Thx a lot