Wheel offset
so i got my truck lifted fab tech 3.5 and 1.5 inch spacers with a add a leaf with 2 inch blocks in the back. now its time for rims and tires. I'm looking at 285/70r18 tire size but i don't know what off set to get I would like my tires to stick out a little but not a lot the rims I am looking at are the tax craw in 17 inches. one other thing is the hub bore. the stock is 87mm the new wheel is 87.1mm should i be worried about this? I will post pictures when i pick it up

