I know you can go out 15mm no prob. That is the difference between a 4R and an FJ wheel which members have installed. Since you have the OME, I see no major problems. Only if you upsize to tires of 285+, you may need to trim the inner fender and remove the mudguards.
I like the style of the Thugs ( 1st one ) BUT i dont know if I like the all black unless your going for the stealth look , which in that case they would look awesome ! If your not going for that look it would be nice if the inside was black and the outside was silver machined finish w/clearcoat to protect them.