I have used the donor loom. If you work methodically from the wiring diagrams (I enlarged the diagrams to A3 size then used coloured pens to identify those wires I needed to keep) it's not that difficult.
You can effectively split it into three parts; those wires running to the front for lights, horn, fan etc; those running from the rear for fuel pump, lights, handbrake warning and those running to the dash and steering column.
Be ruthless with cables like multi earths to reduce the bulk.
doing it this way is pretty much like running new cables but they match the diagrams. You just have to splice them all together at the bulkhead. Mine was complicated slightly by having to wire in a fuel injected Toyota engine to the loom at the same time.
Why don't I make things easy for myself?
I was very wary as I had not wired a vehicle before. It has given me a much better understanding of the systems and it's quite satisfying to have done it myself, in a perverse sort of way.
If you have the time, why not give it a go?
Neil
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