With you being in Ohio, unless you truly think your going to get some use of it before winterizing, I'd leave them in box and put them on your work bench, or coffee table, so you can look at them with glee. I actually enjoy looking things over like that, because then you get other idea, or have other questions. For instance, you know how to put it on. But, all of a sudden, you see another fastener. Now, your curious as to what that one fastener is for. You've got all winter now to figure it out.
Awesome impeller... In all my experience, it's taking your time, don't get in any hurry, and you'll do your best work.