I am not sure if that binding Sanvok and Eligor works... Could you try to convince me
?
Anyway:
Human
1. Binder 1 [Feats: Improved Binding, Magical Training, Extend Spell, Eldritch Corruption]
2. Anima Mage 1
3. Bloodline 1
4. Bloodline 2
5. Bloodline 3 [if you RAWtard bloodline text this should be possible]
6. Scion of Dantalion 1 (Barely qualifying! yay!) [Weapon Focus]
7. Binder 2 (disappointment, no better idea to use pre KotSS levels...)
8. KotSS 1 (Qualify with Divine Power...)
9. Uncanny Trickster [Southern Magician]
10. Tenebrous Apostate 1 (Qualify with the item, Shroud of something or by arguing that Tenebrous grants you rebuking; use Southern Magician for the divine casting)
11. KotSS 2
12. KotSS 3 [Least Legacy]
13. KotSS 4
14. Legacy Champion 1
15. KotSS 5
16. Binder 3
17. Binder 4
18. Binder 5
19. Binder 6
20. Binder 7 (Ye, I am disappointed with these levels too)
So we have Binder 7/Bloodline 3/KotSS 5/Anima Mage 1/Tenebrous Apostate 1/Scion of Dantalion 1/Legacy Champion 1/Uncanny Trickster 1
We add Legacy Champion and Uncanny Trickster to KotSS.
Effective KotSS level is KotSS (5+3 bloodline) + Legacy Champion (0+3 bloodline) + Uncanny Trickster (0+3 bloodline) = 14
Effective Binder level is Binder (7+3) + KotSS 14 + Anima Mage (1+3) + Tenebrous Apostate (0+3) + Scion of Dantalion (1+3) = 35
With your eqaution: 35*2 + 14 = EL 84
17 dips + 3 bloodlines give us an EL base of 51, so we have an improvement of 33.
Now employ further trickery