I would suggest a gradual wean, it will be done in the 2 weeks you have. Prob more like 1 week.
My DS was younger but we had a night feed at the DF time (as he had always woken for it). Take 2 bottles up, 1 of milk with 1oz less in, the other is the back up bottle with just water in. Some simple 'rules' I set myself as a guide:
- reduce by 1 oz every 2-3 days
- do not offer the water bottle unless milk is drained AND LO is fussing for more
- if milk is not drained take note of how much was taken, this is the max you offer the following night
- at each 'new' amount of milk (either because the night before the bottle was not drained or because it is day 3 and time to reduce by 1oz) plan to hold at this amount for 2-3 days, but see previous point, if milk is not drained this becomes the new max amount offered.
- allow for milk or solids intake to be increased at some point in the day, it may be WU milk of breakfast but it may also be elsewhere in the day, let LO pick up the lost calories where needed.
- after 2-3 days of 1oz milk, LO may choose not to wake. If she does you may be able to re-settle without bottle, if she fusses offer water only.
I am pretty confident you will see results quickly and it will be a lot easier than you think as it's a slow gentle wean.