How to drop the last 2 bottles?

So, my son still gets a bedtime bottle, and one in the morning. We've been watering down the bedtime bottle, and he's been choosing a sippy more often at bedtime, so we might be able to drop that one soon. The morning bottle though... Even watered down he will finish the whole thing. Refuses a sippy, no matter what is in it. Screams bloody murder if one isn't offered. And I need him to drink some milk in the morning on daycare days since they don't do breakfast until 8:30 and he's up around 7. Just at a loss. Don't really want to go cold turkey, but not sure what else to do. He's starting to get attached to the bottles too. At least it's only those two; during the day he happily uses straw cups or 360 cups.

Any suggestions? Should I just focus on dropping the bedtime bottle and not worry about the morning one? He doesn't much care for milk in a sippy, so that's my best shot to get some into him too (he does have other dairy).