@Judoka, @Parsifal brings up a good point with the instability of the custom. Be certain to ask the support to green light it, if you’re going with a compact custom.
Consider other modules that further improve the goals of your cores. You have Two synergy modules that deal with Physical Shifting - S: Apollon unbound and the other one that’s made of APS: Head and Facial Morphing.
Take those two synergy, and add some of the constituent and you should maintain straightforward goal. Furthermore, you have other ones like Synergy: Thunderstruck, S: Preordained Vitality (would be a crime if you don’t add!) And other focus modules that deal with healing.
Many options for result enhancers, fill it up.