there are many bead MOCK rims out there. these would be a better choice. Axis wheel
http://www.axiswheel.com makes the Regulator,
and Weld racing makes the Stone Crusher. which is available in 15x8 and 4.25" backspacing. but they aren't cheap, but they are made with a superior process than most normal alloys. They are forged as opposed to machined, making the aluminum that much stronger. Personally, I think they are ugly.