I've just taken one out of our conversion. We're in Evansville, IN. It's yours if you want it.
For only $1,000,000,000,000.
Or pick it up.....or pay for shipping.
You might even see a photo of it on our conversion site. http://www.saveoursouls.net/bus.html
It's coolant fed, through send/return with about .....1 1/2 inch hoses.