I agree that sounds like enough, although if it is already in bottles then some might be wasted as she might not drink it all in one go and it has to be discarded once she's started it. Storing in small batches is a great tip to reduce wastage. Also, at 5 weeks post-partum I can't imagine you being able to go more than 3 or 4 hours without feeding or expressing for comfort at least. Plus your supply can be impacted from going so long. Seeing as your DD will be so close, finding a way to feed her twice at least in 8 hours would be a good idea. I am positive that everyone will understand your need to feed a 5 week old baby.

Have a great time!