thank you all for suggestions.
another info: sorry but no compendium allowed, and DM hate bloodlines.
build up to now
precocious apprentice(Hb), bind vestige(H1, retrained @ 2nd for improved binding), extend spell (F1), Invisible spell (F2), augment summoning(Wiz ACF), SF: conjuration (3), sculpt spell (6), XXX (9), XXX (12), XXX (15), XXX (18)
item familiar (circlet of persuasion?), couldy conjuration, twin spell are my options for now.
I don't want to lose more arcane spellcasting, so no smIX from Zceryll are off the game for now.
still a good option, though.