Scienceiscool,
Looking at your pictures I don't think the repair is going to be all that difficult. Since the wood never separated from itself at the break you can probably just glue it all back together. While keeping the two pieces together straighten out the horizontal stab and the elevator. Once you have it straight push the two halves together as tightly as you can. Now you need to get it straight while gluing it, clamp a straight piece of wood to the top, or bottom, of the horizontal stab while you apply glue. Place the wood away from the area you are gluing. With the stab straight wick thin CA into the breaks and let it set. Continue this on all the break areas. Once it's set you should be fine. Recover the stab and it will be plenty strong enough to fly. Heck, I've had worse hangar rash (damaged caused in the shop or hangar) that I've fixed in the same manner as what I just described.

Ken