Hi there,
I have stuck this routine for both of my babies and I think its works a treat. My dd will be 8 months tomorrow and has been on 3 bottles for quite some time now.

Wake 6:30/7am ish - bottle
8:30 brekky
9:30 sleep
11:30 lunch
12:30/1pm bottle
1:30/2pm sleep
4pm dinner
4:30 bath
5:pm bottle
6pm sleep for the night

I never associate bottles with bed time. Sleeps are between 1 to 2hrs. My bubba will drink around 200 mil, sometimes less. The biggest piece of advice I can give you is that your baby is your biggest guide, they will let you know when they do and don't want something. Both my babies dropped bottles on their own when they were ready. Hope this helps! X