S.D.
My son just turned 1 on 2/2 and we're in the same boat. If your daughter is eating a wide range of table food, there's no need for the formula anymore as she's getting all her nutrients from the food rather than the formula. There's no need to double up.
Switching to vitamin D milk will not be an issue. Just warm it up a bit and she'll drink it just fine.
Before you begin to get her off the bottle, you'll need to reduce the amount of bottle feedings a day. Right now my son is on three 6oz bottles of milk a day. With every sit down meal, we give the sippy cup. My son, like your daughter doesn't like the sippys too much. But, at some point he'll learn to accept them better. Consistency is the key.
Once she's accepting the sippy better, start replacing the mid day bottle first. Keep giving the sippy. Then replace the morning bottle and the evening is the last to go. Once this process starts, toddlers adjust very fast. I've gone through this 3 times. My eldest was bottle free by 13 months, middle child by 12 1/2 months and she was only 17 lbs and my third is yet to be determined. A good goal is to be bottle free by 15 months of age. The older they are, the harder it is to break.
Remember she's no longer an infant but a toddler. You'll need to mentally transition too. As much as we parents love to keep them little, it's best to encourage indepencence and automomy.
Good Luck!