Hi. I would drop the night feed and see where you end up after that. It can be painless if you do it slowly and plan to take a couple of weeks, chances are it will be done before the end of the 2 wks. There are a few ways you can drop the night feed, I would reduce the night feed by 30ml or 1 oz and take a bottle of water with you. If the milk is drained and she goes off to sleep ok then don't offer the water. If the milk is drained and she fusses for more offer her water. After 3 days reduce by 1 oz again and repeat. In addition if the milk is not drained see how much she has taken, on the following night this is the maximum you offer even if you were not yet ready to reduce by an oz, plus offer water as before if there is a fuss. It should be pain free. Chances are she will stop waking for the feed before you finish weaning, if not then finally offer water only for a few days.
You may see an immediate increase in her day time milk or solids intake, you may not. Sometimes it takes a few days for the day intake to increase , that's fine, so long as you are offering her food and milk she will not starve herself.
You could move breakfast earlier, to an hour after her WU milk, but perhaps you have tried that and she isn't hungry enough. It's worth thinking about for after the night feed wean if not before. Also many babies don't like to take solids in the evening. If I started solids any later than 5.15 pm nothing would be eaten (for a 6.45 to 7pm BT). Most babies eat much more for breakfast and lunch and not so much for dinner.
You might also find it comforting to know my silent refluxer was always on the low end of milk intake, I worried so much, he took about half the guidance amount but he gained weight consistently and maintained his centile. He is just a petite boy who didn't need more than he took. Of course if you are concerned about weight gain then it must be taken seriously.
Hope this helps some