looking to buy wheels need correct offset help

[FlybyRE]

http://rotarycarclub.com/rotary_foru...ead.php?t=1828

I looked at the above link however I am not great with that kinda stuff so I was hoping someone could guide me in the correct direction...

I plan to buy 17" wheels would like to do 8 or 8.5 in the front and 9 or 9.5 in the back... Idea is to get as close to the fender as possible..

looks like the normal size sold is:

for fronts
17x8 can get +38 or +48
17x8.5 can get +27 or +30 or +37

for rears
17x9 can get +24 or +35 or +45
17x9.5 can get only + 35


so which should I use to get the most wheel down, get the wheels as flush as possible.. I don't want to roll the exterior of the fenders,, Dont mind rolling the inner lip if need be..

any help would be nice...

car is 86 rx7 5lug swap