03 to 04 wheel conversion adapter ??

I have typical low-end polished aluminum wheels on my 03, 17x7.5 135mm on

5-lug. I want some nicer Ford 5-spokers. E-bay has 97-03 wheels that are nice but almost a grand. I am wondering if anyone is making a conversion kit to fit on the 6-lug newer wheels that are selling for pennies on e-bay............ Later! Alex