I know that Moleskines come in an 8.5 x 5.5 size & i love the texture of the paper and would love to get one of the planners. However I'm finicky as hell about my planners, of course, and need a situation with lots of pockets. If I bought a leather, classic size planner cover with space for sliding in spiral-bound planning pages, will the Moleskine notebook fit well? Has anyone tried this out?