It's entirely possible that it would be okay. I've always heard that Fall is the best time to plant shrubs and trees.
I think I can get one that's maybe 12-18".
I'll look again tomorrow and get back to you, okay?
...and if you'd rather wait that's okay too. The plant will still be there and it's in one of our very few spots that's not waterlogged in the Spring, so digging it up then isn't an issue.