DX Chassis VX Motor Swap Questions

[benfrogg]

Hey all-
Been away for a while, in need of advice again.

Got a full VX parts car, totally rotted out in the rear suspension area. Lost cause on the body....
Scarfed the engine, trans, ecu, exhaust, etc. Still have the parts car with VX harness.

Picked up a DX with a bad motor. Pulled the motor, no problems.

Questions:
The engine harness will go with the motor, so no problems there. The passenger mass disconnect is missing pins on the ECU side. 5 wires total are missing from the large main disconnect. Presumably these are map sensor, vtec E, and the 5th wire from the 02.
What I want to do is unplug the rest of the harness leading through the firewall to where it meets the ECU. Then, where the rest of the harness takes off towards the drivers side, cut all wires and reconnect them to the DX chassis. As long as they are all the same color, I should be golden, but I don't know if that's true yet. One difference that is obvious is that the VX has EGR and the DX did not. Therefore, there are two wires leading to the drivers side firewall harness that are not present on the DX. Presumably I'd find two wires missing from the harness in the VX interior headed for the drivers side. If so, the job is cake. If not, the job is more complicated.

Thoughts? Anyone have a wiring schematic to build a conversion harness? I have a basic wiring diagram of "typical civic" wiring... including VX, but not specific to the DX.

All other problems seem to have been worked out such as motor mounts, exhaust, etc.
Anyone know why the DX was heavier than the VX? I swapped the motor mount that is alloy for the cast iron one. That's gotta be a 10# difference right there!
I have this VX sitting here and I could scarf any light parts needed for the swap.

Thanks all!
B