Now that I think about it, maybe you should see if there is someone (like a butcher) in town that will "process" them for you. You take them two roosters, they give you back two birds ready for dinner.
A vet is able to put them down for you, however, consider reading Rooster Red's advice on his personal page. In the mean time, keep those two away from your kids!
Usually, we suggest the stew pot, but since it seems that's not an option for you (I wouldn't be able to do it myself, either) try...