Turning the motor sideways would work if Honda engine bays were about 10" longer. A 2G CRX bay is 23" long with radiator in place, while a D15 is 26" long with distributor in place. It would be easy due to all of the RWD honda transmissions laying around

The 4G block will bolt to a Starion and Mighty Max pickup (IIRC) trans.

DSM rear would work in RWD only application since the rear final drive ratio doesn't need to match the front final drive ratio, but by that token you could put a Ford 9" in there is you wanted (although you'd have crazy low gearing and 60MPH top speed....)

If you could find a 1:1 differential or something close, and bashed up the firewall enough for the motor to fit sideways, you could turn the motor 90* and run it off the splines for one side after fusing them together.

The AWD wagon would work, but that diff would shear itself to pieces if you so much as fart at it.

Basically, using all Honda parts and CRV diff is just easier. Braille may put out a unit better than the CRV one if their kit, when finished, catches on.

-MR