Cyberfin - looking at her size and weight I am sure she will happily fly on 3S 2,500s ... if you want hard 3D performance then 4S wil be the way to go ... if you are that particular about wing loading then 4S 2,200s.
Let us know how she flies, I am about to maiden my Angel and may get the SU29 50 too ... not too sure about it yet though. Happy Maiden!