I am looking to replace my factory rims on my 06 crv. My factory specs for the rims are 16x6.5, 35-50 mm offset allowed. I currently have 215/65/16 tires. I have noticed most off the afternarket rims are not anywhere near that offset, Specifically looking at cragar soft 8s that have 4 in backspace. Im guessing that I would need wheel spacers but am having trouble figuring out how thick and what not. I am a total noob at all this. Any help?