I say go with your gut! I think it would only show your enthusiasm to parent a baby. It's not as if possible birth parents don't realize this is mostly about the baby!
Your book should reflect you and your husband. Just be sincere! I too love scrapbooking. We needed 6 copies of our booklet so I didn't buy albumns. We bought ribbons and buttons. We three-hole punched the pages, loosley tied them with ribbon, and glued a matching button on the center of each knot. It's 'cutsie' but I'm cutsie/crafty and my DH loves that about me, so it works for us!
Good luck and know that it will take a long time to complete, but every thoughtful touch will be well worth it! Imagine showing the book to your child some day! That some day will come true!
~Nina