The bumble and the Ellas house sound great, I'm soooo pleased they are doing it with a pocket now, I wish I needed more night nappies!! I boost with 4 layer of hemp (a eh hemp booster doubled over) and a mf cloth tripled or quadrupled depending on the size of them, you'll just need to experiment as to how much you need, maybe even add 2 cloths the first night to see how much she needs, then if you don't need it don't add the next night. Don't forget too that it will be different in that you will have the whole nappy wet where you won't be used to feeling that, rest assured with the fleece next to her she will be dry and as long as it doesn't leak out all is good!!
I hope you get on with the tots wraps. In the pul Motherease ones are generally deemed to be the most reliable but alot of people do get on with the tots ones (the bindings are made from different material thats where the big difference comes in). I haven't tried a fleece wrap since Louis was tiny and didn't get on with it but I think that was more that he was so small and not moving at all causing wicking. Now I love my wool and fleece does pretty much the same thing.
Awwww good luck, I hope you find a solution that works for you guys.