Ha, to each their own. Not that I'm enamored of Shapechange and its complexity, but you're building an Artificer: concurring with Auran, it's already the equivalent of 10 sheets, between calculations, dumpster-diving for spells from any spell list and items from any book (given the huge discounts you're getting in this game and your XP shenanigans you probably have 10x+ the normal WBL, no?), plus metamagic combinations (with all rods open here), plus infusions.