I wouldn't have a problem replacing with a used part, and indeed have done so before. There are many reputable business that sell via ebay. The item will be checked and often with a warranty.
In fairness, your entire car is made up of 17 yr old parts, and anyone of those could fail at any time. Like for like repacment is pretty normal. Indeed, for years now, insurance companies have been repairing cars with used parts, eg like for like.