Kymco midi xls mobility scooter

Kymco midi xls 8mph mobility scooter not running at the moment a specialist said the main wiring loom needs replacing, I've seen the wiring looms for around 30 pounds the more expensive part of the problem is getting someone to replace it. The scooter was running perfectly until a couple if weeks ago it goes miles on one charge around 30 miles, its a comfortable ride too.