Ok, good. Its always good to stay ahead of them, because before you know it, they are moving along but so is life and you want to be able to keep up with them.
Having what you will need, handy, is the best way to go and it sounds like you are planning things out well in advance.
Best of luck and document the event, you will not regret it. Yrs later you can look at the pictures when you installed your first bees and the pictures help bring back all those wonderful memories.