Custom Repeater - ORDER BY NodeOrder, NodeLevel, NodeName NEVER RIGHT

I have 3 separate pages - Medical, Vision, Dental, that are getting combined into one page - Benefits. These 3 pages had a folder of documents that were pulled in a Repeater element on the page.Now, however, on the Benefits page, it has 3 Folders called Medical, Vision, Dental that the documents got moved into. We've been able to use ORDER BY NodeOrder so far without an issue but now that does not work with these folders. No combination of NodeOrder, NodeLevel, NodeName is ever correct. How can we have it sort exactly how it looks in the Page Tree?