Humans didn't make the race list? I would think their bonus feat would be helpful. And perhaps mention Changelings for easy access to Warshaper? The immunities and extra reach definitely can come in handy.
For feats maybe Pain Mastery and Involuntary Rage. Since you cannot die from damage, might as well use the former to pump that STR even higher. And for the latter, though the feat has the word "Rage" in the name, the description in the feat nowhere actually mentions the rage ability, so there should be no problem with overlapping or whatnot.
Also, isn't there an Ettercap Berserker feat that gives you extra CON boosts when raging? Probably be helpful to include, if you have room in your feats.