Another question on wheel fitment

[AN89HATCH]

Ive searched an im still confused I have 18x9.5 wheels im tring to fit up front. I have the option to order 18x9.5 +10 and 18x9.5 +0 I have tein he's and I do not want to run over fender. I do not mind pulling the stock fender. What will it take for me to fit these on a stock fender, and not rub my coil? Is it even possible? The reason Im confused is I notice in the search I seen one car running 9.5 + 12 and hes on stock fenders pulled it looked flush, then I see other cars with 17x9.5 +20 on wide fenders and they look flush, so im alittle confused if I can acually fit these wheels. I used to have 17x9 up front +10, and they cleared my coilovers by 5 mm or so. Im also affraid the 9.5's will rub. Does any one have any experience fitting 9.5 wheels on a stock fendered s13??