I've already told you what you need to follow along. I had a change of plans for my journal, in that I cut the spine a little narrow and will only be able to fit 6 signatures in the cover.
MY cover is 2 pieces of cardboard with a fabric and cardstock spine glued to it. I've cut 3 sets of 8 stations into the spine. You could work with any EVEN number of stations. 8 gives a nice look for the spine.
We'll talk more about this tonight.