Gunmetal Z06's on Navy Blue Z?

My buddy offered to sell his z06 rims wrapped in rubber straight off of his Z06 for $800. 17s on front, 18's on back. Will this work straight accross, and does anyone have pics of a navy blue z with Gunmetal Z06's on it?

The wheels will work ok in the front, but the offset in the rear +58mm I believe will most likely rub the inner fender, and will most likely require the BFH(big freakin hammmer) mod to the inner fender...possibly a spacer also.

Check out this post for some pics of Z06 wheels, about middle page user named blaSST, has OEM Z06's on his NBM ss, although he painted them silver, but you get the idea.

http://www.ls1tech.com/forums/showthread.php?t=136054&page=1&pp=20

I dont know what offset is, but i assume its because the wheels are deeper than stock. also, about the BFH, i dont understand that, is there pics of this being done, or a tutorial somewhere? the wheels i am planning on are OEM Z06's with the stock rubber on them too. Also, my car is stock height and i dont plan to lower it.