So what we have so far then is:
Venerable Dragonwrought Loredrake kobold
Sorc 1 Dragonwrought(1st), Draconic heritage(sub level 1), Mercantile background(house ruled free feat), Draconic rite of passage
Sorc 2
Sorc 3 Draconic Reservoir(3rd), Iron Will(Othyg hole)
Sorc 4 4 extra spells(dragonblooded sub level)
Sorc 5
Sorc 6 Extend spell(6th), Greater draconic rite of passage
Incantatrix 1
Incantatrix 2
Incantatrix 3 Persist spell(9th)
Incantatrix 4
Still unsure wether to drop persist spell, and go a different meta magic route. I guess I could pick up touchstone at 9th since incantatrix gives meta magic bonus feats IIRC and get sandshaper at 10th, but our campaigns rarely go that high level.