I can get my hands on a 2000 chevy 1500 4wd with a bad transmission for about 1900. I want to put a 4bt in it mostly for fuel mileage but also power. Could i put a 4l60e or 4l80e behind it? How hard would the conversion be if I bought autoworld or tennessee diesel conversions motor mounts and crossmember? Any info on this stuff would help greatly.