Try contacting Marsh Racing Wheel - www.mrt-wheels.com - for a set of custom 16.5 rims with whatever width & backspacing you need if you desire to run the HMMWV tires.
Off Road Wheels, 16.5, Rockcrawler Wheels, Beadlock Wheels, Racing Wheels,Offroad, buy MRW
$139.95 for a 16.5x9.75 rim with...