What loom you use really doesn't matter. It's just a bunch of wires and plugs. If the plugs were right and the wires were about the right length you could use the loom out of an Excel (Unlikely, but just illustrating a point).
The computer and ignitor are the important bits to match to the engine. If you have the stock computer, get a wiring diagram and connect up the wires to where they should go. If you have an aftermarket ECU, just wire up your engine as the ECU manual explains then take it for a dyno tune.