Me and my brother have been workng on this since he is home for a vacation.
Basicly we took a '77 300D Mercedes sedan and gutted it for the motor, an inline 5 diesel automatic. Then removed the inline 6 gas stickshift. Some new motor mounts and a driveshaft and bam, running driving diesel J5 tractor.
Seems to have more grunt then the other gas J5 we have, exactly what we wanted.
Some nic-nacs left to tie up, a cage to build, gas tank to make, hydrualics to hook up and a blade/drag needs to be installed on the rear.
Will post vids of both J5's when I can.