if its pre 2001 the 1.4 engine wont work, the loom and job lot will need changing to accomidate the coil pack ignition iirc.
At the moment I'm looking for a whole running car, and also a scrapper to try and get the engine in a mini subframe like bigchief does in Tabago.
I notice the CGA3DE puts out 101 PS in the cube, I wonder how they achieved that over the 79 PS that it has in the Micra?