This is rather confusing.
You select the page size when you create a new document, using the presets or you create a custom page size.
With nothing selected, if you select "w" on your keyboard, you will hide or reveal the page guides.
You don't normally outline text or export it as an EPS.
The preferred workflow for say litho printing is to export your InDesign Document to PDF. The PDF specification may be supplied by your printer. If you don't know who's going to print it export it using the Adobe PDF Presets selecting PDFX-4 and as single pages.