Believe it or not, I do... check out the
www.cummins-conversion.com site, and there is a user there trying to sell his conversion setup, It was Ford base, he has the ZF trans and the conversion plate, flywheel and all, but the motor can be had reasonable possibly. I don't currently know of any complete trucks, but keep an eye on ebay, there have been more coming through, and the price had been a bit more reasonable.
http://cummins-conversion.com/phpBB/viewtopic.php?t=175