Quick Update, the Bora has had a 2nd hand "convenience system control unit" thingymajig fitted. £58 delivered. It then had to be coded to the car and keys by Vindis £40+vat.
The interior lights, e/windows and r/c/locking now work, apart from the tailgate. Everytime you close the boot, it reopens electrically. Can only keep it shut by using the key manually. Checked all the wiring and no problems.
Customer is wanting to collect the car tomorrow. Any ideas???