If you're going to put so many points in CON you can go PSI and still have a lot of HPs. You'll also gain:
Stoicism - stack nicely with other damage reduction sources, including Lifting Belt;
Fast Metabolism - more healing;
Force Field - 25 Psychokinesis (you don't need more to make good use of it); a barrier that can shield you from ranged attacks and make your enemies close distance so you don't have to; good for slow melee;
Other PSI abilities that can help with survivability are Disruptive Field, Cryo-Shield and Pseudo-spatial Projection. Not to mention crowd control.
You can also support your hammer strikes with Psychostatic Electricity. You'll need 30 Psychokinesis for Electrokinesis.
I'm not posting exact build because
i'm lazy i believe building character yourself is very fun.