I agree with Barbara that she probably needs a longer A in the AM, but the key thing really is to get her nap back to post lunchtime. While she naps so early in the day, she will need to go to bed early at night & the early starts will continue.
However, I would be wary of pushing her too far in one go - its quite a jump to keep her up til after lunch when she's been napping at 10.30am IYSWIM? She might just end up OT. If you think she can handle it, then go for it & stick with a post lunchtime nap for a good week or so, battle on through any OT & see what happens. Otherwise if she is sensitive to OT, perhaps push the nap later by 15mins at a time, until it is after lunch. If it helps, at 16/17 months we had to do something very similar to combat EW (he was waking at 5am & napping at 11am) & within a few weeks we settled on this:
Up: 7.00ish
Nap: 12.30-2.30
BT: 7.30pm
Hope her night goes ok.