You will also need the interior wiring to the correct points like fuse boxes etc inside the car, you will need to make that yourself as its unlikely you will find a donor harness.
So it will require study of wiring diagrams and buying the correct size wire and terminal housings and crimps.
I assume you have access to etka and wiring diagrams?
If you don't you should get that first.
Sounds like quite a fun challenge, I shall keep an eye out for your progress.
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