As for PU/PD with large babies, it becomes more of a PD... that is, when she starts to crawl or tries to "escape" you lay her down and pat her pack, and as soon she tries to put on fours again, you lay her down again... that means you don't actually PU (so your back remains kind of safe... except for the bending over the crib for hours which has been awful for me...)
If your lo uses bottle to get drowsy, I think it's ok as long as she does not use it to actually fall asleep. You can try giving her her bottle and then use a blankie or stuffed animal so she holds it and then to bed. Loveys are very helpful when training large babies for naps.
Good luck!