I'm sort of in a similar situation. I have a 6+month old boy.
I am only really settling into a bedtime routine now. Books didn't work for us, he's to tired & grumpy but HV suggested introducing a bit of music to make sure there were 3 memorable trigger points (Bath, feed, music).
Bath
Feed
Rock him to 1 song full volume on his mobile (no longer attached to the mobile, just sits on the drawers). 1 x song half volume both with stars projecting
continue Rock to sleep & transfer to cot
When he wakes which he does ALL the time as he is used to co sleeping..we try to comfort him by shhing and shuggling him etc but if it doesn't work I always pick him up and either rock or nurse him to sleep. I feel like he needs the comfort as co sleeping to his own room is a huge step. So my method is leaving me waaay more sleepless than cosleeping was but its early days. On the other hand, when I am in bed its better quality sleep, I'm not tensed up or being kicked by him.
You'll probably find a way your most comfortable with
but the 3 trigger thing usually stops him nursing to sleep at bed time but I always feed him back to sleep multiple times during the night.