My kid built this one and the first time he used it he had broken the Aluminum 208 after 5 minutes (no joke). Found a Cummins truck and bought the 205 and it's still in there.
Built up 440? Find a Cummins truck that's beat and swap in the NP205 and the front D60, trade the 70U for a 60 rear, a lot of them run 3.54's. I've run stock 440's with a D44 front and they sort of hold up if you drive them like a girl. If you romp on them you'll be spending lots on broken parts with a D44. IMO.

Sheldon