What is our center bore in inches?

Also what backspacing/offset should I look to get for a new set of rims?

And what does hub centric mean?

New to the realms of buying rims. I think im going with rock crawler like steel wheels 16x8 6-5.5/backspaced 4.5in.....with 245/75/16 tires.....Im looking for a large sidewall tire but not as wide as my current 265/50

Side note I will be lifting my VX in about a month. So how little or large would set up look?

Thanks.