need wheel & tire upgrade size advice

[manborn]

i originally wanted to put in the TRD 18" on s sedan but since it comes with 40s. the ride will be too harsh for me

i decided on going for 17s but unsure what is the max size without rubbing

which 1 of the below will fit with no rubbing on stock springs/shocks?

-205/45r17
-205/50r17

according to http://www.yarisworld.com/forums/showthread.php?t=1864 since 7.5 rim width fits, then which setup will work without rubbing?

-215/45r17
-215/50r17

i've seen 50s on a mazda 6 and it doesnt look as bad as showed on 1 of the threads here, 50s on a LB

p.s. has any1 called a wheel store to check if the wheel color matches car color? flint mica to match with - Finish: Anthracite Machined
High gloss grey metal with more of a dark silver look