My 2 cents here in addition to what others have said:

* battery operated breast milk pump (believe me, difficult and tiring using hand pump)
* no need for both you & your wife to sleep in the same room as the baby (then, none of you can have a proper sleep). Rotate the night shift, one night you and next night your wife, and so on. Thus you need the extracted breast milk in warm bottle for your night shift.

All the best and congratulations to you & wife!

Cheerio.