Who knows where to buy wheel adapter's for 22.5 - 24.5" rims
www.duallyusa.com sell them as part of a $4500 kit
I can get the wheels and tires here in St Louis all I need are the adapter's
http://www.duallyusa.com/images/products/dually/wheel_adapter_200.jpghttp://www.duallyusa.com/images/products/dually/alcoa_wheels_200.jpg

www.chromewheel.com would be another option

I think www.southwestwheel.com has them.