New Wheels fitment

Hi guys! I was wondering if anyone can help me with this set up? I'm still a noob when it comes to new rims and tires, but also still learning. So basically I want to use my stock suspension for the meantime. The tire size I'm looking to get, from what I've read, & from what others suggested is the 265/70/17 KO2's for the biggest/beefy looking tire. I'm also open to other suggestions of different brands...

The wheels I'm looking at have 2 options:

17x6.5 +38 offset 6x139.7
17x8.0 +20 offset 6x139.7

So far, from what I understand is offset shows how much the wheel sticks out the fender or sticks in? So a negative offset will stick out more? Positive sticks more in?

Basically will any of those 2 options, fit on my stock suspension with the 265/70/17 KO2's?

Thanks for reading & appreciate any advice.

 

I did Pro Comp A/T Sport tires in the 265/70R17. I like them. Not loud and seem to have a lot of grip.

 

Forgot to mention, not looking to fabricate or do any cutting. Not unless I have to... I'm ok removing the mud flaps too