Did you get the timeline cd? Couldn’t you print them at a smaller scale?
I spent a long time delaying doing a timeline because i wanted to do it perfectly. I finally gave up that idea and just started.
Each of my kids this year got a timeline binder. Each week they give me a list of things they want to add. I do agoogle search, find pics, make them about the same size, add name and dates, print. They cut them out and glue them. They enjoy it, and often look to see what is happening at various times.