Hmmm...well, the bottles are hard. Before we got our first babies placed with us, we collected two or three types and thought surely we'd have something in the mix that a baby might take. Both ds and dfd refused all three. With ds we had to experiment with a bunch of types before we finally settled on one. With dfd, she came with a couple of bottles that she didn't really like, but accepted better than the ones we had. Be sure, before you get some bottles, that they know what the baby is accepting. If they are still figuring that out, you could either (a) help them out by getting one each of three to five kinds to assist them in trying a sampling, or (b) tell them as soon as they figure out what the baby will take, to let you know because you want to get them several.
The other big thing that would have helped me is if someone had advocated for me or helped me advocate for myself that I needed a little time off. When ds was placed at us at 1.5 days old, he was still in the hospital, but I sort of immediately went into this "postpartum state." I was literally writing a sermon by his bassinet just a day after he was placed with us. My supervising minister offerred to take the sermon off my hands, but I felt like it was the right time to give that sermon. And then there was a crisis in the church that needed to be addressed. But once that all stabalized, I wish someone had helped me see how much I needed to have a month or two to come to grips with parenting this new little babe who I had no idea was arriving even just a week earlier. From that point onward, I couldn't shake the feeling that I was drowning at work. It was hard. Even if the placement is short-term, if there is any reason to believe this will go on for more than three or four months, I'd say this mama should take at least a few weeks to get settled in. There is no way to really "get" what it means to become an "instant parent" until you have been there. Even if you know it might happen (like when you get foster licensed), when one day you wake up without kids and by that afternoon you are planning their move into your home, it is just a lot to take in (even as joyful as it can also be).