You can work a routine on varying morning WU time, just note the time of WU and start your day there working out his ideal A time to nap and 4hrs between milk feeds. I would suggest BF on WU rather than the solids breakfast, then give the solids an hour later. Milk is very important at this age and up to 12 months and it looks like he doesn't have much interest in the mid morning BF, if he isn't getting enough milk in the day he is more likely to wake at night for it. Every day doesn't have to look identical, in fact the activities you do can have higher or lower stimulation each day, each A time, which is why EASY is a routine and not a fixed time schedule, sometimes LO will be more tired, sometimes less so.
When you introduce solids it does feel like things go a bit off track because of all the extra Es in the day, just focus on the milk Es and fit the solids roughly an hour later. It can also feel like you are constantly feeding between milk and solids but that will ease up as you settle into the routine and as LO becomes more efficient at handling the solids meals. There is no requirement to feed 3 solids meal yet either.
Sleep needs vary from LO to LO
Typical Amounts of Day and Night SleepYou might liek to look at some sample routines to see how others days look
Sample EASY Routines from 0 - 13mths+hth