its honestly going to be a real pain in the ass for nothing...
mounting the d series into the lude will be a hard task...
trhowing some mounts in and welding it up is one thing, but if you ever want to drive it on the road you are gonna need all sorts of measurments cause if the motor doesn't sit completely level and straight in respect to the chassis its going to vibrate like a mother fucker...
if you have an interest in the lude you should spend the couple hundred bucks and drop an f series out of an accord into it...
it will be stock bolt in replacement, no mount hassles, no axle hassles, no hub/spindle hassles... much much easier, and it will be completely streetable and you could prob off it to get some of your money back...