Bottle weaning is a tough thing. I learned the hard way with my daughter, who used it until; on her 4th birthday she threw it away. I did the same thing you're doing. I felt so guilty when I took it away. So, I'd give it back or leave it at night.
In the end she got baby bottle syndrome, most of her teeth were rotted and she had to have suregry to correct them. After much pains and about $20,000 after the surgery and early braces she has perfect and beautiful teeth.
With my son...I took a 3 day weekend of crying and whinning, but by 2 years old he was off the bottle. Take the sleepless weekend and it will be over. Don't chance ruining her teeth, because you feel guilty or feel bad taking it away. Don't give her the pacifer either. That would just be replacing it for something else to get her off of.
During the day start giving her the sippy cup only or a regular plastic cup with just a little water in it, no big deal if it spills. Don't even put the bottle in sight and throw all of them away except one. You will also get tired of washing that one. If you have a sitter, insist that she do it this way.
With Labor Day Weekend coming up, it would be perfect to do then. Throw the last bottle away (out of the house). Start Friday night, by the time Monday comes, the crying & whinning will be reduced to "Ba Ba?". You just tell her no more, she is a big girl now and kiss her good night. Everyone in the house will be able to sleep ready for work on Tuesday.
Good luck to you. You sound like you're ready :)