Need some help on buying wheels. offset to different widths

Don't know if the topic name made any sense to you guys, but I'm having problems with getting a hold of new wheels, and I'm really confused about a couple of things.

I want the wheels to be inside of the arch, wut I want them as wide as possible. I'm considering whether to buy 13-15x7j, 13-15x7,5j or 13-15x8j. I do love wide wheels, and i would love to have some stretch on the tires. So basically I'm wondering what offset i should get without having problems with rubbing OR with them being to wide and sticking out beyond the bodywork. If they are 13-14 or 15" doesn't matter, does it?

I really don't want to do any bodywork to make it work.

Mine are currently et38 7j 15's fill archers but don't stick out look quite good on back as you can see width. Its been lowered a tad and no issues with scrubbing

Mine are currently et38 7j 15's fill archers but don't stick out look quite good on back as you can see width. Its been lowered a tad and no issues with scrubbing

Hmm alright. Anyone with 8j wheels who can tell me anything?