Most likely the wiper motor assembly. If it were stopping electronically then it could be the wiper switch or the park switch inside the wiper motor.
No, you won't. If you take your time, you can remove the cowl without removing the hood.You will need to pull the hood off to remove the plastic cowl piece.
Yes. If you can't find one on eBay, get in touch with Paul Grant.Should i just replace the whole wiper motor?