She is a bit on the young side to be dropping to 3 bottles really - that's usually around 10 months. She needs the milk more than the solids at this age and not all babies are on 3 meals by now. If fitting milk and solids in is tricky I would do milk as late as you can before her nap so she is a bit hungrier and takes more, and maybe leave the lunchtime solids for a while longer until her A time stretches a bit or the first nap lengthens and you have more time to fit them both in.
What do you think?
Laura