Ok,do you have the engine loom and the plus the loom for the computer???
With my conversion it was done with a VP engine and complete loom.Wiring is different to VS.I had a mate who was an electrician who modified the relay/fuse box and wiring.But i still had to wire up a few wires.I swapped the battery over to the drivers side.I used basically all the loom except for the wires/relay that the electrician eliminated.You dont actually wire any wires to the ECU.I had to wire up a wire to supply 12V ignition to a terminal on the ECU pin because it was an VP ECU and loom they have a remote to start/switch ECU on so thats how i did it.
I'm not sure with the VS gear like i said wiring different.I would suggest getting a auto elect to have a look at it.Ownly cost me a carton so yeah.Remember you will need to run the VS oil pressure switch it works the fuel pump switches power to it.