I vote #2
If you want to pitch at 45, the 4-5 hours won't really make a huge difference.
I suspect other people might tell you that you should pitch warm, though. There is an ongoing debate about what temperature to pitch at. I tend to like pitching nice and cool, rather than pitching it warm and then dropping it down. If you do a search for Narziss lager fermentation methods, you'll find one argument for pitching cold. Other people feel that pitching warm helps the yeast get going better.