1986 Ford Cummins Conversion
 

I have an 86 Ford F-350 and would like to install the Cummins 12 valve I pulled out of a school bus. Anyone know where I can find an adapter plate to this Cummins industrial engine? I am currently open to options on the transmission. I am probably going to go with a GM NV4500 because they are cheap easy to find. Any help would be appreciated.