I would cut them for a Demonic Tutor and a Vamp Tutor. I don't really feel comfortable with Consulation in this deck due to its inherent lack of synergy with Survival.

SFI would be very strong on an Exalted Angel for additional life gain along with damage to creatures against aggro, and would serve as a card draw engine. However, I do not think it would fit well in EBA due to the fact that it cannot draw cards alone, and consequently, unlike Ophidian, it is not a strong card draw engine alone. Nevertheless, it does warrent testing.