All my pages are cut now. Nothing is joined yet, no binding has happened. The next step is to decide on the placement of pages and the layout of my stitched samples. That could take some time. I also need to create more surfaces with stitched paper for overlays and page fillers.
Once I start to actually fix my samples to pages I will have a better idea of how many more I need too. In truth, you can never have too many. If there are any remaining once your book is filled they become the best reason to create another one, to start again.
Below is a very short Instagram video of my little stitched bits.