I have done something similar in that i put a lotus 3.6twinturbo into a Omega 2.0 auto, and the best advice i can give you is dont try to join the 2 looms!! run them seperately except for the ignition switch!!!I wonder to converting a Senator 3.0 24V to a 2.5td, and to use the omega 2.5td engine and gearbox from a omega b. Is there anyone who had tried that. The biggest problem for me is the electrical. Is there anyone who had some tried that before?